87219260 has 24 divisors (see below), whose sum is σ = 185897040. Its totient is φ = 34366464.

The previous prime is 87219247. The next prime is 87219271. The reversal of 87219260 is 6291278.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 87219260.

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, 31205 + ... + 33884.

It is an arithmetic number, because the mean of its divisors is an integer number (7745710).

Almost surely, 2^87219260 is an apocalyptic number.

It is an amenable number.

87219260 is an abundant number, since it is smaller than the sum of its proper divisors (98677780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87219260 is a wasteful number, since it uses less digits than its factorization.

87219260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65165 (or 65163 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 87219260 is about 9339.1252267008. The cubic root of 87219260 is about 443.4766918493.

The spelling of 87219260 in words is "eighty-seven million, two hundred nineteen thousand, two hundred sixty".