87440592 has 20 divisors (see below), whose sum is σ = 225888320. Its totient is φ = 29146848.

The previous prime is 87440569. The next prime is 87440599. The reversal of 87440592 is 29504478.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 87440592.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87440599) 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, 910792 + ... + 910887.

It is an arithmetic number, because the mean of its divisors is an integer number (11294416).

Almost surely, 2^87440592 is an apocalyptic number.

It is an amenable number.

87440592 is an abundant number, since it is smaller than the sum of its proper divisors (138447728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87440592 is a wasteful number, since it uses less digits than its factorization.

87440592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821690 (or 1821684 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 87440592 is about 9350.9674365811. The cubic root of 87440592 is about 443.8515045983.

The spelling of 87440592 in words is "eighty-seven million, four hundred forty thousand, five hundred ninety-two".