996808877 has 2 divisors, whose sum is σ = 996808878. Its totient is φ = 996808876.

The previous prime is 996808829. The next prime is 996808907. The reversal of 996808877 is 778808699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 617572201 + 379236676 = 24851^2 + 19474^2 .

It is a cyclic number.

It is not a de Polignac number, because 996808877 - 2²⁸ = 728373421 is a prime.

It is a super-2 number, since 2×996808877² = 1987255874532002258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (992808877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498404438 + 498404439.

It is an arithmetic number, because the mean of its divisors is an integer number (498404439).

Almost surely, 2^996808877 is an apocalyptic number.

It is an amenable number.

996808877 is a deficient number, since it is larger than the sum of its proper divisors (1).

996808877 is an equidigital number, since it uses as much as digits as its factorization.

996808877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 62.

The square root of 996808877 is about 31572.2801995675. The cubic root of 996808877 is about 998.9351588491.

The spelling of 996808877 in words is "nine hundred ninety-six million, eight hundred eight thousand, eight hundred seventy-seven".