84871256 has 8 divisors (see below), whose sum is σ = 159133620. Its totient is φ = 42435624.

The previous prime is 84871253. The next prime is 84871277. The reversal of 84871256 is 65217848.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84871253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5304446 + ... + 5304461.

Almost surely, 2^84871256 is an apocalyptic number.

It is an amenable number.

84871256 is a deficient number, since it is larger than the sum of its proper divisors (74262364).

84871256 is a wasteful number, since it uses less digits than its factorization.

84871256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10608913 (or 10608909 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 84871256 is about 9212.5596877307. The cubic root of 84871256 is about 439.4608685985.

The spelling of 84871256 in words is "eighty-four million, eight hundred seventy-one thousand, two hundred fifty-six".