86166884 has 6 divisors (see below), whose sum is σ = 150792054. Its totient is φ = 43083440.

The previous prime is 86166877. The next prime is 86166911. The reversal of 86166884 is 48866168.

It can be written as a sum of positive squares in only one way, i.e., 72624484 + 13542400 = 8522^2 + 3680^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10770857 + ... + 10770864.

It is an arithmetic number, because the mean of its divisors is an integer number (25132009).

Almost surely, 2^86166884 is an apocalyptic number.

It is an amenable number.

86166884 is a deficient number, since it is larger than the sum of its proper divisors (64625170).

86166884 is a wasteful number, since it uses less digits than its factorization.

86166884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21541725 (or 21541723 counting only the distinct ones).

The product of its digits is 442368, while the sum is 47.

The square root of 86166884 is about 9282.6119169122. The cubic root of 86166884 is about 441.6858260270.

The spelling of 86166884 in words is "eighty-six million, one hundred sixty-six thousand, eight hundred eighty-four".