86087856 has 20 divisors (see below), whose sum is σ = 222393752. Its totient is φ = 28695936.

The previous prime is 86087821. The next prime is 86087857. The reversal of 86087856 is 65878068.

It is a happy number.

It is a super-2 number, since 2×86087856² = 14822237901353472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1793497 = 86087856 / (8 + 6 + 0 + 8 + 7 + 8 + 5 + 6).

It is not an unprimeable number, because it can be changed into a prime (86087857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896701 + ... + 896796.

Almost surely, 2^86087856 is an apocalyptic number.

It is an amenable number.

86087856 is an abundant number, since it is smaller than the sum of its proper divisors (136305896).

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

86087856 is a wasteful number, since it uses less digits than its factorization.

86087856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793508 (or 1793502 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 86087856 is about 9278.3541643979. The cubic root of 86087856 is about 441.5507539340.

The spelling of 86087856 in words is "eighty-six million, eighty-seven thousand, eight hundred fifty-six".