86975668 has 12 divisors (see below), whose sum is σ = 163915780. Its totient is φ = 40142592.

The previous prime is 86975599. The next prime is 86975671. The reversal of 86975668 is 86657968.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15539364 + 71436304 = 3942^2 + 8452^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 836253 + ... + 836356.

Almost surely, 2^86975668 is an apocalyptic number.

It is an amenable number.

86975668 is a deficient number, since it is larger than the sum of its proper divisors (76940112).

86975668 is a wasteful number, since it uses less digits than its factorization.

86975668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672626 (or 1672624 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 55.

The square root of 86975668 is about 9326.0746297679. The cubic root of 86975668 is about 443.0634494094.

It can be divided in two parts, 8697 and 5668, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 86975668 in words is "eighty-six million, nine hundred seventy-five thousand, six hundred sixty-eight".