87711825 has 12 divisors (see below), whose sum is σ = 145017008. Its totient is φ = 46779600.

The previous prime is 87711817. The next prime is 87711853. The reversal of 87711825 is 52811778.

It is not a de Polignac number, because 87711825 - 2³ = 87711817 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584671 + ... + 584820.

Almost surely, 2^87711825 is an apocalyptic number.

It is an amenable number.

87711825 is a deficient number, since it is larger than the sum of its proper divisors (57305183).

87711825 is a wasteful number, since it uses less digits than its factorization.

87711825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169504 (or 1169499 counting only the distinct ones).

The product of its digits is 31360, while the sum is 39.

The square root of 87711825 is about 9365.4591451781. The cubic root of 87711825 is about 444.3099602944.

The spelling of 87711825 in words is "eighty-seven million, seven hundred eleven thousand, eight hundred twenty-five".