87650222 has 12 divisors (see below), whose sum is σ = 144514608. Its totient is φ = 39840900.

The previous prime is 87650201. The next prime is 87650239. The reversal of 87650222 is 22205678.

It is a super-2 number, since 2×87650222² = 15365122833298568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180854 + ... + 181337.

It is an arithmetic number, because the mean of its divisors is an integer number (12042884).

Almost surely, 2^87650222 is an apocalyptic number.

87650222 is a deficient number, since it is larger than the sum of its proper divisors (56864386).

87650222 is a wasteful number, since it uses less digits than its factorization.

87650222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362215 (or 362204 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 87650222 is about 9362.1697271519. The cubic root of 87650222 is about 444.2059179307.

The spelling of 87650222 in words is "eighty-seven million, six hundred fifty thousand, two hundred twenty-two".