84580256 has 12 divisors (see below), whose sum is σ = 166517442. Its totient is φ = 42290112.

The previous prime is 84580247. The next prime is 84580259. The reversal of 84580256 is 65208548.

It can be written as a sum of positive squares in only one way, i.e., 56490256 + 28090000 = 7516^2 + 5300^2 .

It is not an unprimeable number, because it can be changed into a prime (84580259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321535 + ... + 1321598.

Almost surely, 2^84580256 is an apocalyptic number.

It is an amenable number.

84580256 is a deficient number, since it is larger than the sum of its proper divisors (81937186).

84580256 is a wasteful number, since it uses less digits than its factorization.

84580256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643143 (or 2643135 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 84580256 is about 9196.7524703017. The cubic root of 84580256 is about 438.9580303137.

The spelling of 84580256 in words is "eighty-four million, five hundred eighty thousand, two hundred fifty-six".