86687472 has 20 divisors (see below), whose sum is σ = 223942760. Its totient is φ = 28895808.

The previous prime is 86687453. The next prime is 86687473. The reversal of 86687472 is 27478668.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1805989 = 86687472 / (8 + 6 + 6 + 8 + 7 + 4 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86687473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902947 + ... + 903042.

It is an arithmetic number, because the mean of its divisors is an integer number (11197138).

Almost surely, 2^86687472 is an apocalyptic number.

It is an amenable number.

86687472 is an abundant number, since it is smaller than the sum of its proper divisors (137255288).

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

86687472 is a wasteful number, since it uses less digits than its factorization.

86687472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806000 (or 1805994 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 86687472 is about 9310.6107211074. The cubic root of 86687472 is about 442.5735407155.

The spelling of 86687472 in words is "eighty-six million, six hundred eighty-seven thousand, four hundred seventy-two".