87993465 has 48 divisors (see below), whose sum is σ = 172422720. Its totient is φ = 38102400.

The previous prime is 87993463. The next prime is 87993539. The reversal of 87993465 is 56439978.

It is not a de Polignac number, because 87993465 - 2¹ = 87993463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87993461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10815 + ... + 17115.

It is an arithmetic number, because the mean of its divisors is an integer number (3592140).

Almost surely, 2^87993465 is an apocalyptic number.

It is an amenable number.

87993465 is a deficient number, since it is larger than the sum of its proper divisors (84429255).

87993465 is a wasteful number, since it uses less digits than its factorization.

87993465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6342 (or 6335 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 87993465 is about 9380.4831965097. The cubic root of 87993465 is about 444.7850074550.

The spelling of 87993465 in words is "eighty-seven million, nine hundred ninety-three thousand, four hundred sixty-five".