531032977 has 2 divisors, whose sum is σ = 531032978. Its totient is φ = 531032976.

The previous prime is 531032969. The next prime is 531033017. The reversal of 531032977 is 779230135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298287441 + 232745536 = 17271^2 + 15256^2 .

It is a cyclic number.

It is not a de Polignac number, because 531032977 - 2³ = 531032969 is a prime.

It is a super-2 number, since 2×531032977² = 563992045322965058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (531002977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265516488 + 265516489.

It is an arithmetic number, because the mean of its divisors is an integer number (265516489).

Almost surely, 2^531032977 is an apocalyptic number.

It is an amenable number.

531032977 is a deficient number, since it is larger than the sum of its proper divisors (1).

531032977 is an equidigital number, since it uses as much as digits as its factorization.

531032977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 531032977 is about 23044.1527724497. The cubic root of 531032977 is about 809.7926497654.

The spelling of 531032977 in words is "five hundred thirty-one million, thirty-two thousand, nine hundred seventy-seven".