86403864 has 32 divisors (see below), whose sum is σ = 217998000. Its totient is φ = 28536192.

The previous prime is 86403857. The next prime is 86403869. The reversal of 86403864 is 46830468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86403869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13899 + ... + 19130.

Almost surely, 2^86403864 is an apocalyptic number.

It is an amenable number.

86403864 is an abundant number, since it is smaller than the sum of its proper divisors (131594136).

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

86403864 is a wasteful number, since it uses less digits than its factorization.

86403864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33147 (or 33143 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 86403864 is about 9295.3678786802. The cubic root of 86403864 is about 442.0903700616.

The spelling of 86403864 in words is "eighty-six million, four hundred three thousand, eight hundred sixty-four".