3097431921 has 8 divisors (see below), whose sum is σ = 4182186880. Its totient is φ = 2038815792.

The previous prime is 3097431907. The next prime is 3097431959. The reversal of 3097431921 is 1291347903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3097431921 - 2⁷ = 3097431793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3097431921.

It is not an unprimeable number, because it can be changed into a prime (3097431901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6534430 + ... + 6534903.

It is an arithmetic number, because the mean of its divisors is an integer number (522773360).

Almost surely, 2^3097431921 is an apocalyptic number.

It is an amenable number.

3097431921 is a deficient number, since it is larger than the sum of its proper divisors (1084754959).

3097431921 is a wasteful number, since it uses less digits than its factorization.

3097431921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13069415.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 3097431921 is about 55654.5768198807. The cubic root of 3097431921 is about 1457.6969885376.

The spelling of 3097431921 in words is "three billion, ninety-seven million, four hundred thirty-one thousand, nine hundred twenty-one".