86375720 has 32 divisors (see below), whose sum is σ = 194722920. Its totient is φ = 34483200.

The previous prime is 86375719. The next prime is 86375749. The reversal of 86375720 is 2757368.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 75099556 + 11276164 = 8666^2 + 3358^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22244 + ... + 25836.

Almost surely, 2^86375720 is an apocalyptic number.

It is an amenable number.

86375720 is an abundant number, since it is smaller than the sum of its proper divisors (108347200).

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

86375720 is a wasteful number, since it uses less digits than its factorization.

86375720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4205 (or 4201 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 86375720 is about 9293.8538830778. The cubic root of 86375720 is about 442.0423647142.

The spelling of 86375720 in words is "eighty-six million, three hundred seventy-five thousand, seven hundred twenty".