256706703 has 72 divisors (see below), whose sum is σ = 438363744. Its totient is φ = 144270720.

The previous prime is 256706687. The next prime is 256706713. The reversal of 256706703 is 307607652.

It is a happy number.

256706703 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256706703 - 2⁴ = 256706687 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256706713) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 926601 + ... + 926877.

Almost surely, 2^256706703 is an apocalyptic number.

256706703 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

256706703 is a deficient number, since it is larger than the sum of its proper divisors (181657041).

256706703 is a wasteful number, since it uses less digits than its factorization.

256706703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 256706703 is about 16022.0692483836. The cubic root of 256706703 is about 635.5441657777.

The spelling of 256706703 in words is "two hundred fifty-six million, seven hundred six thousand, seven hundred three".