677900957 has 2 divisors, whose sum is σ = 677900958. Its totient is φ = 677900956.

The previous prime is 677900953. The next prime is 677900969. The reversal of 677900957 is 759009776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 615585721 + 62315236 = 24811^2 + 7894^2 .

It is a cyclic number.

It is not a de Polignac number, because 677900957 - 2² = 677900953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677900953) 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 as a sum of consecutive naturals, namely, 338950478 + 338950479.

It is an arithmetic number, because the mean of its divisors is an integer number (338950479).

Almost surely, 2^677900957 is an apocalyptic number.

It is an amenable number.

677900957 is a deficient number, since it is larger than the sum of its proper divisors (1).

677900957 is an equidigital number, since it uses as much as digits as its factorization.

677900957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 833490, while the sum is 50.

The square root of 677900957 is about 26036.5312013717. The cubic root of 677900957 is about 878.4601847145.

The spelling of 677900957 in words is "six hundred seventy-seven million, nine hundred thousand, nine hundred fifty-seven".