84071856 has 40 divisors (see below), whose sum is σ = 236931264. Its totient is φ = 25476160.

The previous prime is 84071849. The next prime is 84071863. The reversal of 84071856 is 65817048.

It is an interprime number because it is at equal distance from previous prime (84071849) and next prime (84071863).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 79086 + ... + 80141.

Almost surely, 2^84071856 is an apocalyptic number.

It is an amenable number.

84071856 is an abundant number, since it is smaller than the sum of its proper divisors (152859408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84071856 is a wasteful number, since it uses less digits than its factorization.

84071856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159249 (or 159243 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 84071856 is about 9169.0706181161. The cubic root of 84071856 is about 438.0767572574.

The spelling of 84071856 in words is "eighty-four million, seventy-one thousand, eight hundred fifty-six".