87124730 has 32 divisors (see below), whose sum is σ = 195523200. Its totient is φ = 27155520.

The previous prime is 87124717. The next prime is 87124753. The reversal of 87124730 is 3742178.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55805 + ... + 57344.

It is an arithmetic number, because the mean of its divisors is an integer number (6110100).

Almost surely, 2^87124730 is an apocalyptic number.

87124730 is an abundant number, since it is smaller than the sum of its proper divisors (108398470).

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

87124730 is a wasteful number, since it uses less digits than its factorization.

87124730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113174.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 87124730 is about 9334.0628881533. The cubic root of 87124730 is about 443.3164175932.

The spelling of 87124730 in words is "eighty-seven million, one hundred twenty-four thousand, seven hundred thirty".