87997167 has 6 divisors (see below), whose sum is σ = 127107032. Its totient is φ = 58664772.

The previous prime is 87997109. The next prime is 87997199. The reversal of 87997167 is 76179978.

It is not a de Polignac number, because 87997167 - 2¹¹ = 87995119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87997067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4888723 + ... + 4888740.

Almost surely, 2^87997167 is an apocalyptic number.

87997167 is a deficient number, since it is larger than the sum of its proper divisors (39109865).

87997167 is a wasteful number, since it uses less digits than its factorization.

87997167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9777469 (or 9777466 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 54.

The square root of 87997167 is about 9380.6805190242. The cubic root of 87997167 is about 444.7912449296.

The spelling of 87997167 in words is "eighty-seven million, nine hundred ninety-seven thousand, one hundred sixty-seven".