87665092 has 12 divisors (see below), whose sum is σ = 153604780. Its totient is φ = 43778016.

The previous prime is 87665087. The next prime is 87665111. The reversal of 87665092 is 29056678.

It can be written as a sum of positive squares in 2 ways, for example, as 62504836 + 25160256 = 7906^2 + 5016^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 9903 + ... + 16534.

Almost surely, 2^87665092 is an apocalyptic number.

It is an amenable number.

87665092 is a deficient number, since it is larger than the sum of its proper divisors (65939688).

87665092 is a wasteful number, since it uses less digits than its factorization.

87665092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27270 (or 27268 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 87665092 is about 9362.9638469878. The cubic root of 87665092 is about 444.2310365911.

The spelling of 87665092 in words is "eighty-seven million, six hundred sixty-five thousand, ninety-two".