257062679 has 4 divisors (see below), whose sum is σ = 257486784. Its totient is φ = 256638576.

The previous prime is 257062649. The next prime is 257062709. The reversal of 257062679 is 976260752.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (257062649) and next prime (257062709).

It is a cyclic number.

It is not a de Polignac number, because 257062679 - 2¹² = 257058583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257062649) 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 in 3 ways as a sum of consecutive naturals, for example, 211142 + ... + 212355.

It is an arithmetic number, because the mean of its divisors is an integer number (64371696).

Almost surely, 2^257062679 is an apocalyptic number.

257062679 is a deficient number, since it is larger than the sum of its proper divisors (424105).

257062679 is an equidigital number, since it uses as much as digits as its factorization.

257062679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424104.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 257062679 is about 16033.1743270009. The cubic root of 257062679 is about 635.8378004622.

The spelling of 257062679 in words is "two hundred fifty-seven million, sixty-two thousand, six hundred seventy-nine".