87865076 has 12 divisors (see below), whose sum is σ = 165591972. Its totient is φ = 40553088.

The previous prime is 87865069. The next prime is 87865081. The reversal of 87865076 is 67056878.

It can be written as a sum of positive squares in 2 ways, for example, as 51552400 + 36312676 = 7180^2 + 6026^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 87865076.

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, 844805 + ... + 844908.

It is an arithmetic number, because the mean of its divisors is an integer number (13799331).

Almost surely, 2^87865076 is an apocalyptic number.

It is an amenable number.

87865076 is a deficient number, since it is larger than the sum of its proper divisors (77726896).

87865076 is a wasteful number, since it uses less digits than its factorization.

87865076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689730 (or 1689728 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 87865076 is about 9373.6372876275. The cubic root of 87865076 is about 444.5685773729.

The spelling of 87865076 in words is "eighty-seven million, eight hundred sixty-five thousand, seventy-six".