3343377721 has 4 divisors (see below), whose sum is σ = 3400045200. Its totient is φ = 3286710244.

The previous prime is 3343377691. The next prime is 3343377733. The reversal of 3343377721 is 1277733433.

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.

It is a cyclic number.

It is not a de Polignac number, because 3343377721 - 2¹³ = 3343369529 is a prime.

It is a super-2 number, since 2×3343377721² = 22356349170558307682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3343378721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28333651 + ... + 28333768.

It is an arithmetic number, because the mean of its divisors is an integer number (850011300).

Almost surely, 2^3343377721 is an apocalyptic number.

It is an amenable number.

3343377721 is a deficient number, since it is larger than the sum of its proper divisors (56667479).

3343377721 is an equidigital number, since it uses as much as digits as its factorization.

3343377721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56667478.

The product of its digits is 222264, while the sum is 40.

The square root of 3343377721 is about 57821.9484365582. The cubic root of 3343377721 is about 1495.3005098302.

The spelling of 3343377721 in words is "three billion, three hundred forty-three million, three hundred seventy-seven thousand, seven hundred twenty-one".