87779344 has 10 divisors (see below), whose sum is σ = 170072510. Its totient is φ = 43889664.

The previous prime is 87779323. The next prime is 87779353. The reversal of 87779344 is 44397778.

It can be written as a sum of positive squares in only one way, i.e., 87609600 + 169744 = 9360^2 + 412^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2743089 + ... + 2743120.

It is an arithmetic number, because the mean of its divisors is an integer number (17007251).

Almost surely, 2^87779344 is an apocalyptic number.

It is an amenable number.

87779344 is a deficient number, since it is larger than the sum of its proper divisors (82293166).

87779344 is a wasteful number, since it uses less digits than its factorization.

87779344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5486217 (or 5486211 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 49.

The square root of 87779344 is about 9369.0631335262. The cubic root of 87779344 is about 444.4239383502.

The spelling of 87779344 in words is "eighty-seven million, seven hundred seventy-nine thousand, three hundred forty-four".