87868570 has 16 divisors (see below), whose sum is σ = 163266048. Its totient is φ = 34013520.

The previous prime is 87868549. The next prime is 87868591. The reversal of 87868570 is 7586878.

It is an interprime number because it is at equal distance from previous prime (87868549) and next prime (87868591).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141414 + ... + 142033.

It is an arithmetic number, because the mean of its divisors is an integer number (10204128).

Almost surely, 2^87868570 is an apocalyptic number.

87868570 is a deficient number, since it is larger than the sum of its proper divisors (75397478).

87868570 is a wasteful number, since it uses less digits than its factorization.

87868570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283485.

The product of its (nonzero) digits is 752640, while the sum is 49.

The square root of 87868570 is about 9373.8236595319. The cubic root of 87868570 is about 444.5744701276.

The spelling of 87868570 in words is "eighty-seven million, eight hundred sixty-eight thousand, five hundred seventy".