87966377 has 4 divisors (see below), whose sum is σ = 89279376. Its totient is φ = 86653380.

The previous prime is 87966343. The next prime is 87966391. The reversal of 87966377 is 77366978.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87966377 - 2¹⁸ = 87704233 is a prime.

It is a super-2 number, since 2×87966377² = 15476166965012258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87966337) by changing a digit.

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, 656399 + ... + 656532.

It is an arithmetic number, because the mean of its divisors is an integer number (22319844).

Almost surely, 2^87966377 is an apocalyptic number.

It is an amenable number.

87966377 is a deficient number, since it is larger than the sum of its proper divisors (1312999).

87966377 is a wasteful number, since it uses less digits than its factorization.

87966377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312998.

The product of its digits is 2667168, while the sum is 53.

The square root of 87966377 is about 9379.0392365103. The cubic root of 87966377 is about 444.7393617440.

The spelling of 87966377 in words is "eighty-seven million, nine hundred sixty-six thousand, three hundred seventy-seven".