87865364 has 24 divisors (see below), whose sum is σ = 155800008. Its totient is φ = 43355520.

The previous prime is 87865363. The next prime is 87865369. The reversal of 87865364 is 46356878.

It can be written as a sum of positive squares in 4 ways, for example, as 8655364 + 79210000 = 2942^2 + 8900^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87865363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113282 + ... + 114054.

It is an arithmetic number, because the mean of its divisors is an integer number (6491667).

Almost surely, 2^87865364 is an apocalyptic number.

It is an amenable number.

87865364 is a deficient number, since it is larger than the sum of its proper divisors (67934644).

87865364 is a wasteful number, since it uses less digits than its factorization.

87865364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115 (or 1113 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 87865364 is about 9373.6526498479. The cubic root of 87865364 is about 444.5690631010.

The spelling of 87865364 in words is "eighty-seven million, eight hundred sixty-five thousand, three hundred sixty-four".