2979251393 has 4 divisors (see below), whose sum is σ = 2991717120. Its totient is φ = 2966785668.

The previous prime is 2979251389. The next prime is 2979251419. The reversal of 2979251393 is 3931529792.

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 2979251393 - 2² = 2979251389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2979241393) 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, 6232505 + ... + 6232982.

It is an arithmetic number, because the mean of its divisors is an integer number (747929280).

Almost surely, 2^2979251393 is an apocalyptic number.

It is an amenable number.

2979251393 is a deficient number, since it is larger than the sum of its proper divisors (12465727).

2979251393 is a wasteful number, since it uses less digits than its factorization.

2979251393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12465726.

The product of its digits is 918540, while the sum is 50.

The square root of 2979251393 is about 54582.5191155557. The cubic root of 2979251393 is about 1438.9169120639.

The spelling of 2979251393 in words is "two billion, nine hundred seventy-nine million, two hundred fifty-one thousand, three hundred ninety-three".