3427343521 has 4 divisors (see below), whose sum is σ = 3916964032. Its totient is φ = 2937723012.

The previous prime is 3427343501. The next prime is 3427343567. The reversal of 3427343521 is 1253437243.

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 an emirpimes, since its reverse is a distinct semiprime: 1253437243 = 419 ⋅2991497.

It is not a de Polignac number, because 3427343521 - 2²⁵ = 3393789089 is a prime.

It is a super-2 number, since 2×3427343521² = 23493367221881354882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3427343501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244810245 + ... + 244810258.

It is an arithmetic number, because the mean of its divisors is an integer number (979241008).

Almost surely, 2^3427343521 is an apocalyptic number.

It is an amenable number.

3427343521 is a deficient number, since it is larger than the sum of its proper divisors (489620511).

3427343521 is an equidigital number, since it uses as much as digits as its factorization.

3427343521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489620510.

The product of its digits is 60480, while the sum is 34.

The square root of 3427343521 is about 58543.5181809225. The cubic root of 3427343521 is about 1507.7148484197.

The spelling of 3427343521 in words is "three billion, four hundred twenty-seven million, three hundred forty-three thousand, five hundred twenty-one".