2979897531 has 16 divisors (see below), whose sum is σ = 4280075520. Its totient is φ = 1833248160.

The previous prime is 2979897511. The next prime is 2979897541. The reversal of 2979897531 is 1357989792.

It is not a de Polignac number, because 2979897531 - 2⁵ = 2979897499 is a prime.

It is a super-2 number, since 2×2979897531² = 17759578590519791922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2979897511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155980 + ... + 174038.

It is an arithmetic number, because the mean of its divisors is an integer number (267504720).

Almost surely, 2^2979897531 is an apocalyptic number.

2979897531 is a deficient number, since it is larger than the sum of its proper divisors (1300177989).

2979897531 is a wasteful number, since it uses less digits than its factorization.

2979897531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22306.

The product of its digits is 8573040, while the sum is 60.

The square root of 2979897531 is about 54588.4377043344. The cubic root of 2979897531 is about 1439.0209283158.

The spelling of 2979897531 in words is "two billion, nine hundred seventy-nine million, eight hundred ninety-seven thousand, five hundred thirty-one".