86370444 has 36 divisors (see below), whose sum is σ = 220454416. Its totient is φ = 28509408.

The previous prime is 86370419. The next prime is 86370457. The reversal of 86370444 is 44407368.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 86370399 and 86370408.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7939 + ... + 15354.

Almost surely, 2^86370444 is an apocalyptic number.

It is an amenable number.

86370444 is an abundant number, since it is smaller than the sum of its proper divisors (134083972).

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

86370444 is a wasteful number, since it uses less digits than its factorization.

86370444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23406 (or 23401 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 86370444 is about 9293.5700352448. The cubic root of 86370444 is about 442.0333642566.

The spelling of 86370444 in words is "eighty-six million, three hundred seventy thousand, four hundred forty-four".