86247432 has 24 divisors (see below), whose sum is σ = 233586990. Its totient is φ = 28749120.

The previous prime is 86247419. The next prime is 86247433. The reversal of 86247432 is 23474268.

It can be written as a sum of positive squares in only one way, i.e., 68657796 + 17589636 = 8286^2 + 4194^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is not an unprimeable number, because it can be changed into a prime (86247433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 598869 + ... + 599012.

Almost surely, 2^86247432 is an apocalyptic number.

It is an amenable number.

86247432 is an abundant number, since it is smaller than the sum of its proper divisors (147339558).

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

86247432 is a wasteful number, since it uses less digits than its factorization.

86247432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197893 (or 1197886 counting only the distinct ones).

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

The square root of 86247432 is about 9286.9495530018. The cubic root of 86247432 is about 441.8234110959.

The spelling of 86247432 in words is "eighty-six million, two hundred forty-seven thousand, four hundred thirty-two".