87653875 has 16 divisors (see below), whose sum is σ = 110635200. Its totient is φ = 69326400.

The previous prime is 87653861. The next prime is 87653879. The reversal of 87653875 is 57835678.

It is not a de Polignac number, because 87653875 - 2⁵ = 87653843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87653879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7186 + ... + 15064.

It is an arithmetic number, because the mean of its divisors is an integer number (6914700).

Almost surely, 2^87653875 is an apocalyptic number.

87653875 is a deficient number, since it is larger than the sum of its proper divisors (22981325).

87653875 is an equidigital number, since it uses as much as digits as its factorization.

87653875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7983 (or 7973 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 49.

The square root of 87653875 is about 9362.3648187838. The cubic root of 87653875 is about 444.2120889045.

The spelling of 87653875 in words is "eighty-seven million, six hundred fifty-three thousand, eight hundred seventy-five".