87715222 has 16 divisors (see below), whose sum is σ = 151160832. Its totient is φ = 37394280.

The previous prime is 87715211. The next prime is 87715237. The reversal of 87715222 is 22251778.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13728 + ... + 19075.

It is an arithmetic number, because the mean of its divisors is an integer number (9447552).

Almost surely, 2^87715222 is an apocalyptic number.

87715222 is a deficient number, since it is larger than the sum of its proper divisors (63445610).

87715222 is a wasteful number, since it uses less digits than its factorization.

87715222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33003.

The product of its digits is 15680, while the sum is 34.

The square root of 87715222 is about 9365.6405013218. The cubic root of 87715222 is about 444.3156961286.

The spelling of 87715222 in words is "eighty-seven million, seven hundred fifteen thousand, two hundred twenty-two".