86437632 has 72 divisors (see below), whose sum is σ = 238044240. Its totient is φ = 27811840.

The previous prime is 86437609. The next prime is 86437643. The reversal of 86437632 is 23673468.

It is a congruent number.

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, 20332 + ... + 24212.

It is an arithmetic number, because the mean of its divisors is an integer number (3306170).

Almost surely, 2^86437632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86437632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119022120).

86437632 is an abundant number, since it is smaller than the sum of its proper divisors (151606608).

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

86437632 is a wasteful number, since it uses less digits than its factorization.

86437632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929 (or 3915 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 86437632 is about 9297.1840898199. The cubic root of 86437632 is about 442.1479545360.

The spelling of 86437632 in words is "eighty-six million, four hundred thirty-seven thousand, six hundred thirty-two".