87435855 has 40 divisors (see below), whose sum is σ = 168803712. Its totient is φ = 43042752.

The previous prime is 87435827. The next prime is 87435863. The reversal of 87435855 is 55853478.

It is not a de Polignac number, because 87435855 - 2⁶ = 87435791 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 87435855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3039 + ... + 13568.

Almost surely, 2^87435855 is an apocalyptic number.

87435855 is a deficient number, since it is larger than the sum of its proper divisors (81367857).

87435855 is a wasteful number, since it uses less digits than its factorization.

87435855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16637 (or 16628 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 87435855 is about 9350.7141438502. The cubic root of 87435855 is about 443.8434893944.

The spelling of 87435855 in words is "eighty-seven million, four hundred thirty-five thousand, eight hundred fifty-five".