86451372 has 36 divisors (see below), whose sum is σ = 249749136. Its totient is φ = 24700320.

The previous prime is 86451331. The next prime is 86451383. The reversal of 86451372 is 27315468.

86451372 is a `hidden beast` number, since 8 + 645 + 1 + 3 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171279 + ... + 171782.

It is an arithmetic number, because the mean of its divisors is an integer number (6937476).

Almost surely, 2^86451372 is an apocalyptic number.

It is an amenable number.

86451372 is an abundant number, since it is smaller than the sum of its proper divisors (163297764).

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

86451372 is a wasteful number, since it uses less digits than its factorization.

86451372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343078 (or 343073 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 86451372 is about 9297.9229938734. The cubic root of 86451372 is about 442.1713810262.

The spelling of 86451372 in words is "eighty-six million, four hundred fifty-one thousand, three hundred seventy-two".