87068730 has 128 divisors (see below), whose sum is σ = 261895680. Its totient is φ = 18084864.

The previous prime is 87068717. The next prime is 87068749. The reversal of 87068730 is 3786078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3002356 + ... + 3002384.

It is an arithmetic number, because the mean of its divisors is an integer number (2046060).

Almost surely, 2^87068730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87068730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130947840).

87068730 is an abundant number, since it is smaller than the sum of its proper divisors (174826950).

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

87068730 is a wasteful number, since it uses less digits than its factorization.

87068730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 87068730 is about 9331.0626404499. The cubic root of 87068730 is about 443.2214157100.

The spelling of 87068730 in words is "eighty-seven million, sixty-eight thousand, seven hundred thirty".