477980957 has 2 divisors, whose sum is σ = 477980958. Its totient is φ = 477980956.

The previous prime is 477980897. The next prime is 477980969. The reversal of 477980957 is 759089774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 363512356 + 114468601 = 19066^2 + 10699^2 .

It is a cyclic number.

It is not a de Polignac number, because 477980957 - 2²⁰ = 476932381 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 (477980057) 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, 238990478 + 238990479.

It is an arithmetic number, because the mean of its divisors is an integer number (238990479).

Almost surely, 2^477980957 is an apocalyptic number.

It is an amenable number.

477980957 is a deficient number, since it is larger than the sum of its proper divisors (1).

477980957 is an equidigital number, since it uses as much as digits as its factorization.

477980957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4445280, while the sum is 56.

The square root of 477980957 is about 21862.7756014647. The cubic root of 477980957 is about 781.8741678474.

The spelling of 477980957 in words is "four hundred seventy-seven million, nine hundred eighty thousand, nine hundred fifty-seven".