87560400 has 120 divisors (see below), whose sum is σ = 283133664. Its totient is φ = 23129600.

The previous prime is 87560381. The next prime is 87560449. The reversal of 87560400 is 406578.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

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 23 ways as a sum of consecutive naturals, for example, 156922 + ... + 157478.

Almost surely, 2^87560400 is an apocalyptic number.

87560400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87560400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141566832).

87560400 is an abundant number, since it is smaller than the sum of its proper divisors (195573264).

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

87560400 is a wasteful number, since it uses less digits than its factorization.

87560400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709 (or 698 counting only the distinct ones).

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

The square root of 87560400 is about 9357.3714257798. The cubic root of 87560400 is about 444.0541286171.

Adding to 87560400 its reverse (406578), we get a palindrome (87966978).

The spelling of 87560400 in words is "eighty-seven million, five hundred sixty thousand, four hundred".