86681475 has 48 divisors (see below), whose sum is σ = 160153440. Its totient is φ = 45964800.

The previous prime is 86681467. The next prime is 86681501. The reversal of 86681475 is 57418668.

It is a happy number.

It is not a de Polignac number, because 86681475 - 2³ = 86681467 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 86681475.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 189447 + ... + 189903.

It is an arithmetic number, because the mean of its divisors is an integer number (3336530).

Almost surely, 2^86681475 is an apocalyptic number.

86681475 is a deficient number, since it is larger than the sum of its proper divisors (73471965).

86681475 is a wasteful number, since it uses less digits than its factorization.

86681475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757 (or 746 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 86681475 is about 9310.2886636237. The cubic root of 86681475 is about 442.5633348012.

The spelling of 86681475 in words is "eighty-six million, six hundred eighty-one thousand, four hundred seventy-five".