87220888 has 8 divisors (see below), whose sum is σ = 163539180. Its totient is φ = 43610440.

The previous prime is 87220871. The next prime is 87220907. The reversal of 87220888 is 88802278.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5451298 + ... + 5451313.

Almost surely, 2^87220888 is an apocalyptic number.

It is an amenable number.

87220888 is a deficient number, since it is larger than the sum of its proper divisors (76318292).

87220888 is a wasteful number, since it uses less digits than its factorization.

87220888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10902617 (or 10902613 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 43.

The square root of 87220888 is about 9339.2123864917. The cubic root of 87220888 is about 443.4794510853.

The spelling of 87220888 in words is "eighty-seven million, two hundred twenty thousand, eight hundred eighty-eight".