256948079 has 2 divisors, whose sum is σ = 256948080. Its totient is φ = 256948078.

The previous prime is 256948061. The next prime is 256948099. The reversal of 256948079 is 970849652.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256948079 - 2²⁴ = 240170863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256948099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128474039 + 128474040.

It is an arithmetic number, because the mean of its divisors is an integer number (128474040).

Almost surely, 2^256948079 is an apocalyptic number.

256948079 is a deficient number, since it is larger than the sum of its proper divisors (1).

256948079 is an equidigital number, since it uses as much as digits as its factorization.

256948079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 256948079 is about 16029.6000885861. The cubic root of 256948079 is about 635.7432997188.

The spelling of 256948079 in words is "two hundred fifty-six million, nine hundred forty-eight thousand, seventy-nine".