86645004 has 12 divisors (see below), whose sum is σ = 202171704. Its totient is φ = 28881664.

The previous prime is 86644967. The next prime is 86645021. The reversal of 86645004 is 40054668.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3610197 + ... + 3610220.

It is an arithmetic number, because the mean of its divisors is an integer number (16847642).

Almost surely, 2^86645004 is an apocalyptic number.

It is an amenable number.

86645004 is an abundant number, since it is smaller than the sum of its proper divisors (115526700).

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

86645004 is a wasteful number, since it uses less digits than its factorization.

86645004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7220424 (or 7220422 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 86645004 is about 9308.3298179641. The cubic root of 86645004 is about 442.5012569788.

The spelling of 86645004 in words is "eighty-six million, six hundred forty-five thousand, four".