87666476 has 12 divisors (see below), whose sum is σ = 153611640. Its totient is φ = 43777440.

The previous prime is 87666463. The next prime is 87666499. The reversal of 87666476 is 67466678.

It is a super-2 number, since 2×87666476² = 15370822028517152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10310 + ... + 16781.

It is an arithmetic number, because the mean of its divisors is an integer number (12800970).

Almost surely, 2^87666476 is an apocalyptic number.

It is an amenable number.

87666476 is a deficient number, since it is larger than the sum of its proper divisors (65945164).

87666476 is a wasteful number, since it uses less digits than its factorization.

87666476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27904 (or 27902 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 50.

The square root of 87666476 is about 9363.0377549169. The cubic root of 87666476 is about 444.2333743233.

The spelling of 87666476 in words is "eighty-seven million, six hundred sixty-six thousand, four hundred seventy-six".