87450516 has 60 divisors (see below), whose sum is σ = 242075988. Its totient is φ = 27433728.

The previous prime is 87450511. The next prime is 87450523. The reversal of 87450516 is 61505478.

It can be written as a sum of positive squares in 2 ways, for example, as 81974916 + 5475600 = 9054^2 + 2340^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87450511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2431 + ... + 13446.

Almost surely, 2^87450516 is an apocalyptic number.

It is an amenable number.

87450516 is an abundant number, since it is smaller than the sum of its proper divisors (154625472).

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

87450516 is a wasteful number, since it uses less digits than its factorization.

87450516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15910 (or 15899 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 87450516 is about 9351.4980618081. The cubic root of 87450516 is about 443.8682954869.

The spelling of 87450516 in words is "eighty-seven million, four hundred fifty thousand, five hundred sixteen".