87378764 has 48 divisors (see below), whose sum is σ = 171884160. Its totient is φ = 38530560.

The previous prime is 87378757. The next prime is 87378803. The reversal of 87378764 is 46787378.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 251639 + ... + 251985.

It is an arithmetic number, because the mean of its divisors is an integer number (3580920).

Almost surely, 2^87378764 is an apocalyptic number.

It is an amenable number.

87378764 is a deficient number, since it is larger than the sum of its proper divisors (84505396).

87378764 is a wasteful number, since it uses less digits than its factorization.

87378764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 516 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The square root of 87378764 is about 9347.6608838789. The cubic root of 87378764 is about 443.7468662346.

The spelling of 87378764 in words is "eighty-seven million, three hundred seventy-eight thousand, seven hundred sixty-four".