86138732 has 6 divisors (see below), whose sum is σ = 150742788. Its totient is φ = 43069364.

The previous prime is 86138719. The next prime is 86138783. The reversal of 86138732 is 23783168.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10767338 + ... + 10767345.

It is an arithmetic number, because the mean of its divisors is an integer number (25123798).

Almost surely, 2^86138732 is an apocalyptic number.

It is an amenable number.

86138732 is a deficient number, since it is larger than the sum of its proper divisors (64604056).

86138732 is a wasteful number, since it uses less digits than its factorization.

86138732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21534687 (or 21534685 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 86138732 is about 9281.0954094870. The cubic root of 86138732 is about 441.6377190157.

It can be divided in two parts, 861 and 38732, that added together give a palindrome (39593).

The spelling of 86138732 in words is "eighty-six million, one hundred thirty-eight thousand, seven hundred thirty-two".