87090600 has 96 divisors (see below), whose sum is σ = 277348320. Its totient is φ = 22590720.

The previous prime is 87090587. The next prime is 87090613. The reversal of 87090600 is 609078.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87090587) and next prime (87090613).

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

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, 20239 + ... + 24161.

It is an arithmetic number, because the mean of its divisors is an integer number (2889045).

Almost surely, 2^87090600 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87090600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138674160).

87090600 is an abundant number, since it is smaller than the sum of its proper divisors (190257720).

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

87090600 is a wasteful number, since it uses less digits than its factorization.

87090600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979 (or 3970 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 87090600 is about 9332.2344591207. The cubic root of 87090600 is about 443.2585221848.

Adding to 87090600 its reverse (609078), we get a palindrome (87699678).

The spelling of 87090600 in words is "eighty-seven million, ninety thousand, six hundred".