2923640897 has 2 divisors, whose sum is σ = 2923640898. Its totient is φ = 2923640896.

The previous prime is 2923640857. The next prime is 2923640971. The reversal of 2923640897 is 7980463292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1778224561 + 1145416336 = 42169^2 + 33844^2 .

It is a cyclic number.

It is not a de Polignac number, because 2923640897 - 2²⁴ = 2906863681 is a prime.

It is a super-2 number, since 2×2923640897² = 17095352189221929218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2923640857) 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 as a sum of consecutive naturals, namely, 1461820448 + 1461820449.

It is an arithmetic number, because the mean of its divisors is an integer number (1461820449).

Almost surely, 2^2923640897 is an apocalyptic number.

It is an amenable number.

2923640897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2923640897 is an equidigital number, since it uses as much as digits as its factorization.

2923640897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 2923640897 is about 54070.7027603674. The cubic root of 2923640897 is about 1429.9077152045.

The spelling of 2923640897 in words is "two billion, nine hundred twenty-three million, six hundred forty thousand, eight hundred ninety-seven".