87125430 has 64 divisors (see below), whose sum is σ = 243878400. Its totient is φ = 19912032.

The previous prime is 87125419. The next prime is 87125443. The reversal of 87125430 is 3452178.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6057 + ... + 14523.

It is an arithmetic number, because the mean of its divisors is an integer number (3810600).

Almost surely, 2^87125430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87125430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121939200).

87125430 is an abundant number, since it is smaller than the sum of its proper divisors (156752970).

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

87125430 is a wasteful number, since it uses less digits than its factorization.

87125430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8498 (or 8484 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 87125430 is about 9334.1003851469. The cubic root of 87125430 is about 443.3176048590.

The spelling of 87125430 in words is "eighty-seven million, one hundred twenty-five thousand, four hundred thirty".