256467723 has 4 divisors (see below), whose sum is σ = 341956968. Its totient is φ = 170978480.

The previous prime is 256467707. The next prime is 256467787. The reversal of 256467723 is 327764652.

256467723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 256467723 - 2⁴ = 256467707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256467703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42744618 + ... + 42744623.

It is an arithmetic number, because the mean of its divisors is an integer number (85489242).

Almost surely, 2^256467723 is an apocalyptic number.

256467723 is a deficient number, since it is larger than the sum of its proper divisors (85489245).

256467723 is an equidigital number, since it uses as much as digits as its factorization.

256467723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85489244.

The product of its digits is 423360, while the sum is 42.

The square root of 256467723 is about 16014.6096736699. The cubic root of 256467723 is about 635.3468855109.

The spelling of 256467723 in words is "two hundred fifty-six million, four hundred sixty-seven thousand, seven hundred twenty-three".