256982067 has 6 divisors (see below), whose sum is σ = 371196332. Its totient is φ = 171321372.

The previous prime is 256982039. The next prime is 256982069. The reversal of 256982067 is 760289652.

256982067 is a `hidden beast` number, since 2 + 569 + 8 + 20 + 67 = 666.

It is not a de Polignac number, because 256982067 - 2⁸ = 256981811 is a prime.

It is a super-3 number, since 3×256982067³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256982069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14276773 + ... + 14276790.

Almost surely, 2^256982067 is an apocalyptic number.

256982067 is a deficient number, since it is larger than the sum of its proper divisors (114214265).

256982067 is a wasteful number, since it uses less digits than its factorization.

256982067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28553569 (or 28553566 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 256982067 is about 16030.6602172212. The cubic root of 256982067 is about 635.7713296237.

The spelling of 256982067 in words is "two hundred fifty-six million, nine hundred eighty-two thousand, sixty-seven".