87302730 has 16 divisors (see below), whose sum is σ = 209526624. Its totient is φ = 23280720.

The previous prime is 87302729. The next prime is 87302737. The reversal of 87302730 is 3720378.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2910091 = 87302730 / (8 + 7 + 3 + 0 + 2 + 7 + 3 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87302737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455016 + ... + 1455075.

It is an arithmetic number, because the mean of its divisors is an integer number (13095414).

Almost surely, 2^87302730 is an apocalyptic number.

87302730 is an abundant number, since it is smaller than the sum of its proper divisors (122223894).

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

87302730 is a wasteful number, since it uses less digits than its factorization.

87302730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910101.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 87302730 is about 9343.5929919919. The cubic root of 87302730 is about 443.6181177880.

The spelling of 87302730 in words is "eighty-seven million, three hundred two thousand, seven hundred thirty".