257082967 has 2 divisors, whose sum is σ = 257082968. Its totient is φ = 257082966.

The previous prime is 257082929. The next prime is 257082989. The reversal of 257082967 is 769280752.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257082967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257082167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128541483 + 128541484.

It is an arithmetic number, because the mean of its divisors is an integer number (128541484).

Almost surely, 2^257082967 is an apocalyptic number.

257082967 is a deficient number, since it is larger than the sum of its proper divisors (1).

257082967 is an equidigital number, since it uses as much as digits as its factorization.

257082967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 257082967 is about 16033.8070027053. The cubic root of 257082967 is about 635.8545273010.

The spelling of 257082967 in words is "two hundred fifty-seven million, eighty-two thousand, nine hundred sixty-seven".