256467701 has 4 divisors (see below), whose sum is σ = 293105952. Its totient is φ = 219829452.

The previous prime is 256467697. The next prime is 256467703. The reversal of 256467701 is 107764652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 256467701 - 2² = 256467697 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 (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, 18319115 + ... + 18319128.

It is an arithmetic number, because the mean of its divisors is an integer number (73276488).

Almost surely, 2^256467701 is an apocalyptic number.

It is an amenable number.

256467701 is a deficient number, since it is larger than the sum of its proper divisors (36638251).

256467701 is an equidigital number, since it uses as much as digits as its factorization.

256467701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36638250.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 256467701 is about 16014.6089867970. The cubic root of 256467701 is about 635.3468673441.

The spelling of 256467701 in words is "two hundred fifty-six million, four hundred sixty-seven thousand, seven hundred one".