87219952 has 20 divisors (see below), whose sum is σ = 173557096. Its totient is φ = 42431040.

The previous prime is 87219929. The next prime is 87219961. The reversal of 87219952 is 25991278.

It is a junction number, because it is equal to n+sod(n) for n = 87219899 and 87219908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73074 + ... + 74257.

Almost surely, 2^87219952 is an apocalyptic number.

It is an amenable number.

87219952 is a deficient number, since it is larger than the sum of its proper divisors (86337144).

87219952 is a wasteful number, since it uses less digits than its factorization.

87219952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147376 (or 147370 counting only the distinct ones).

The product of its digits is 90720, while the sum is 43.

The square root of 87219952 is about 9339.1622750651. The cubic root of 87219952 is about 443.4778646983.

The spelling of 87219952 in words is "eighty-seven million, two hundred nineteen thousand, nine hundred fifty-two".