87666954 has 16 divisors (see below), whose sum is σ = 177951648. Its totient is φ = 28786032.

The previous prime is 87666947. The next prime is 87666967. The reversal of 87666954 is 45966678.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 87666897 and 87666906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108637 + ... + 109440.

It is an arithmetic number, because the mean of its divisors is an integer number (11121978).

Almost surely, 2^87666954 is an apocalyptic number.

87666954 is an abundant number, since it is smaller than the sum of its proper divisors (90284694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87666954 is a wasteful number, since it uses less digits than its factorization.

87666954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218149.

The product of its digits is 2177280, while the sum is 51.

The square root of 87666954 is about 9363.0632807858. The cubic root of 87666954 is about 444.2341817135.

The spelling of 87666954 in words is "eighty-seven million, six hundred sixty-six thousand, nine hundred fifty-four".