86712975 has 18 divisors (see below), whose sum is σ = 155312976. Its totient is φ = 46246800.

The previous prime is 86712973. The next prime is 86713001. The reversal of 86712975 is 57921768.

It is not a de Polignac number, because 86712975 - 2¹ = 86712973 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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 86712975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86712973) 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 17 ways as a sum of consecutive naturals, for example, 192471 + ... + 192920.

Almost surely, 2^86712975 is an apocalyptic number.

86712975 is a deficient number, since it is larger than the sum of its proper divisors (68600001).

86712975 is a wasteful number, since it uses less digits than its factorization.

86712975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385407 (or 385399 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 86712975 is about 9311.9801868346. The cubic root of 86712975 is about 442.6169373989.

The spelling of 86712975 in words is "eighty-six million, seven hundred twelve thousand, nine hundred seventy-five".