86916040 has 16 divisors (see below), whose sum is σ = 195561180. Its totient is φ = 34766400.

The previous prime is 86916017. The next prime is 86916041. The reversal of 86916040 is 4061968.

It can be written as a sum of positive squares in 2 ways, for example, as 78747876 + 8168164 = 8874^2 + 2858^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86915987 and 86916005.

It is not an unprimeable number, because it can be changed into a prime (86916041) 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, 1086411 + ... + 1086490.

Almost surely, 2^86916040 is an apocalyptic number.

It is an amenable number.

86916040 is an abundant number, since it is smaller than the sum of its proper divisors (108645140).

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

86916040 is a wasteful number, since it uses less digits than its factorization.

86916040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172912 (or 2172908 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 86916040 is about 9322.8772382779. The cubic root of 86916040 is about 442.9621757711.

The spelling of 86916040 in words is "eighty-six million, nine hundred sixteen thousand, forty".