86620772 has 24 divisors (see below), whose sum is σ = 182360640. Its totient is φ = 35169120.

The previous prime is 86620759. The next prime is 86620777. The reversal of 86620772 is 27702668.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (86620777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80879 + ... + 81942.

It is an arithmetic number, because the mean of its divisors is an integer number (7598360).

Almost surely, 2^86620772 is an apocalyptic number.

It is an amenable number.

86620772 is an abundant number, since it is smaller than the sum of its proper divisors (95739868).

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

86620772 is a wasteful number, since it uses less digits than its factorization.

86620772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162851 (or 162849 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 86620772 is about 9307.0280970888. The cubic root of 86620772 is about 442.4600017045.

The spelling of 86620772 in words is "eighty-six million, six hundred twenty thousand, seven hundred seventy-two".