87997166 has 8 divisors (see below), whose sum is σ = 132065424. Its totient is φ = 43975360.

The previous prime is 87997109. The next prime is 87997199. The reversal of 87997166 is 66179978.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 6410 + ... + 14733.

It is an arithmetic number, because the mean of its divisors is an integer number (16508178).

Almost surely, 2^87997166 is an apocalyptic number.

87997166 is a deficient number, since it is larger than the sum of its proper divisors (44068258).

87997166 is a wasteful number, since it uses less digits than its factorization.

87997166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23226.

The product of its digits is 1143072, while the sum is 53.

The square root of 87997166 is about 9380.6804657232. The cubic root of 87997166 is about 444.7912432447.

The spelling of 87997166 in words is "eighty-seven million, nine hundred ninety-seven thousand, one hundred sixty-six".