87966439 has 8 divisors (see below), whose sum is σ = 96066432. Its totient is φ = 79883640.

The previous prime is 87966419. The next prime is 87966479. The reversal of 87966439 is 93466978.

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

It is a cyclic number.

It is not a de Polignac number, because 87966439 - 2⁵ = 87966407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87966419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7932 + ... + 15454.

It is an arithmetic number, because the mean of its divisors is an integer number (12008304).

Almost surely, 2^87966439 is an apocalyptic number.

87966439 is a deficient number, since it is larger than the sum of its proper divisors (8099993).

87966439 is a wasteful number, since it uses less digits than its factorization.

87966439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8597.

The product of its digits is 1959552, while the sum is 52.

The square root of 87966439 is about 9379.0425417523. The cubic root of 87966439 is about 444.7394662303.

The spelling of 87966439 in words is "eighty-seven million, nine hundred sixty-six thousand, four hundred thirty-nine".