3349623421 has 4 divisors (see below), whose sum is σ = 3349739200. Its totient is φ = 3349507644.

The previous prime is 3349623391. The next prime is 3349623427. The reversal of 3349623421 is 1243269433.

3349623421 = T₄₇₂₅₄ + T₄₇₂₅₅ + T₄₇₂₅₆.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1243269433 = 7 ⋅177609919.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3349623421 is a prime.

It is a super-2 number, since 2×3349623421² = 22439954125023486482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3349623427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27100 + ... + 86218.

It is an arithmetic number, because the mean of its divisors is an integer number (837434800).

Almost surely, 2^3349623421 is an apocalyptic number.

3349623421 is the 47256-th centered triangular number.

It is an amenable number.

3349623421 is a deficient number, since it is larger than the sum of its proper divisors (115779).

3349623421 is an equidigital number, since it uses as much as digits as its factorization.

3349623421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115778.

The product of its digits is 93312, while the sum is 37.

The square root of 3349623421 is about 57875.9312754447. The cubic root of 3349623421 is about 1496.2310447305.

The spelling of 3349623421 in words is "three billion, three hundred forty-nine million, six hundred twenty-three thousand, four hundred twenty-one".