87716475 has 144 divisors (see below), whose sum is σ = 201487104. Its totient is φ = 35424000.

The previous prime is 87716441. The next prime is 87716477. The reversal of 87716475 is 57461778.

It is not a de Polignac number, because 87716475 - 2¹⁹ = 87192187 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 87716475.

It is not an unprimeable number, because it can be changed into a prime (87716477) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1056784 + ... + 1056866.

It is an arithmetic number, because the mean of its divisors is an integer number (1399216).

Almost surely, 2^87716475 is an apocalyptic number.

87716475 is an abundant number, since it is smaller than the sum of its proper divisors (113770629).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87716475 is a wasteful number, since it uses less digits than its factorization.

87716475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 170 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 87716475 is about 9365.7073945325. The cubic root of 87716475 is about 444.3178117816.

The spelling of 87716475 in words is "eighty-seven million, seven hundred sixteen thousand, four hundred seventy-five".