256296723 has 16 divisors (see below), whose sum is σ = 349111296. Its totient is φ = 167209280.

The previous prime is 256296721. The next prime is 256296731. The reversal of 256296723 is 327692652.

It is a cyclic number.

It is not a de Polignac number, because 256296723 - 2¹ = 256296721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256296721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24790 + ... + 33572.

It is an arithmetic number, because the mean of its divisors is an integer number (21819456).

Almost surely, 2^256296723 is an apocalyptic number.

256296723 is a deficient number, since it is larger than the sum of its proper divisors (92814573).

256296723 is a wasteful number, since it uses less digits than its factorization.

256296723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8994.

The product of its digits is 272160, while the sum is 42.

The square root of 256296723 is about 16009.2699083999. The cubic root of 256296723 is about 635.2056481507.

The spelling of 256296723 in words is "two hundred fifty-six million, two hundred ninety-six thousand, seven hundred twenty-three".