802664957 has 2 divisors, whose sum is σ = 802664958. Its totient is φ = 802664956.

The previous prime is 802664921. The next prime is 802664977. The reversal of 802664957 is 759466208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 747147556 + 55517401 = 27334^2 + 7451^2 .

It is a cyclic number.

It is not a de Polignac number, because 802664957 - 2⁶ = 802664893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (802664917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401332478 + 401332479.

It is an arithmetic number, because the mean of its divisors is an integer number (401332479).

Almost surely, 2^802664957 is an apocalyptic number.

It is an amenable number.

802664957 is a deficient number, since it is larger than the sum of its proper divisors (1).

802664957 is an equidigital number, since it uses as much as digits as its factorization.

802664957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 802664957 is about 28331.3423084753. The cubic root of 802664957 is about 929.3474271217.

The spelling of 802664957 in words is "eight hundred two million, six hundred sixty-four thousand, nine hundred fifty-seven".