86857372 has 24 divisors (see below), whose sum is σ = 173982816. Its totient is φ = 37167168.

The previous prime is 86857367. The next prime is 86857387. The reversal of 86857372 is 27375868.

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, 19638 + ... + 23650.

It is an arithmetic number, because the mean of its divisors is an integer number (7249284).

Almost surely, 2^86857372 is an apocalyptic number.

It is an amenable number.

86857372 is an abundant number, since it is smaller than the sum of its proper divisors (87125444).

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

86857372 is a wasteful number, since it uses less digits than its factorization.

86857372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4797 (or 4795 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 86857372 is about 9319.7302536071. The cubic root of 86857372 is about 442.8624874039.

The spelling of 86857372 in words is "eighty-six million, eight hundred fifty-seven thousand, three hundred seventy-two".