87610720 has 24 divisors (see below), whose sum is σ = 206980704. Its totient is φ = 35044224.

The previous prime is 87610687. The next prime is 87610723. The reversal of 87610720 is 2701678.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87610723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273624 + ... + 273943.

It is an arithmetic number, because the mean of its divisors is an integer number (8624196).

Almost surely, 2^87610720 is an apocalyptic number.

87610720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87610720 is an abundant number, since it is smaller than the sum of its proper divisors (119369984).

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

87610720 is a wasteful number, since it uses less digits than its factorization.

87610720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547582 (or 547574 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 87610720 is about 9360.0598288686. The cubic root of 87610720 is about 444.1391766704.

The spelling of 87610720 in words is "eighty-seven million, six hundred ten thousand, seven hundred twenty".