87750285 has 16 divisors (see below), whose sum is σ = 160457856. Its totient is φ = 40114368.

The previous prime is 87750239. The next prime is 87750319. The reversal of 87750285 is 58205778.

It is a happy number.

It is not a de Polignac number, because 87750285 - 2⁸ = 87750029 is a prime.

It is a super-2 number, since 2×87750285² = 15400225035162450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417754 + ... + 417963.

It is an arithmetic number, because the mean of its divisors is an integer number (10028616).

Almost surely, 2^87750285 is an apocalyptic number.

It is an amenable number.

87750285 is a deficient number, since it is larger than the sum of its proper divisors (72707571).

87750285 is a wasteful number, since it uses less digits than its factorization.

87750285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835732.

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 87750285 is about 9367.5122097599. The cubic root of 87750285 is about 444.3748913497.

The spelling of 87750285 in words is "eighty-seven million, seven hundred fifty thousand, two hundred eighty-five".