86444620 has 24 divisors (see below), whose sum is σ = 185757264. Its totient is φ = 33773376.

The previous prime is 86444599. The next prime is 86444693. The reversal of 86444620 is 2644468.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49399 + ... + 51118.

It is an arithmetic number, because the mean of its divisors is an integer number (7739886).

Almost surely, 2^86444620 is an apocalyptic number.

It is an amenable number.

86444620 is an abundant number, since it is smaller than the sum of its proper divisors (99312644).

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

86444620 is a wasteful number, since it uses less digits than its factorization.

86444620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100569 (or 100567 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 86444620 is about 9297.5598949402. The cubic root of 86444620 is about 442.1598692795.

The spelling of 86444620 in words is "eighty-six million, four hundred forty-four thousand, six hundred twenty".