87869944 has 16 divisors (see below), whose sum is σ = 164878200. Its totient is φ = 43902432.

The previous prime is 87869933. The next prime is 87869963. The reversal of 87869944 is 44996878.

It is a super-2 number, since 2×87869944² = 15442254117126272, which contains 22 as substring.

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, 10459 + ... + 16885.

Almost surely, 2^87869944 is an apocalyptic number.

It is an amenable number.

87869944 is a deficient number, since it is larger than the sum of its proper divisors (77008256).

87869944 is a wasteful number, since it uses less digits than its factorization.

87869944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8142 (or 8138 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The square root of 87869944 is about 9373.8969484415. The cubic root of 87869944 is about 444.5767873844.

The spelling of 87869944 in words is "eighty-seven million, eight hundred sixty-nine thousand, nine hundred forty-four".