487057931 has 2 divisors, whose sum is σ = 487057932. Its totient is φ = 487057930.

The previous prime is 487057927. The next prime is 487057937. The reversal of 487057931 is 139750784.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 487057931 - 2² = 487057927 is a prime.

It is a super-2 number, since 2×487057931² = 474450856300001522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (487057937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243528965 + 243528966.

It is an arithmetic number, because the mean of its divisors is an integer number (243528966).

Almost surely, 2^487057931 is an apocalyptic number.

487057931 is a deficient number, since it is larger than the sum of its proper divisors (1).

487057931 is an equidigital number, since it uses as much as digits as its factorization.

487057931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 487057931 is about 22069.3890037762. The cubic root of 487057931 is about 786.7924911453.

The spelling of 487057931 in words is "four hundred eighty-seven million, fifty-seven thousand, nine hundred thirty-one".