7992730 has 64 divisors (see below), whose sum is σ = 16588800. Its totient is φ = 2756160.

The previous prime is 7992727. The next prime is 7992739. The reversal of 7992730 is 372997.

It is a self number, because there is not a number n which added to its sum of digits gives 7992730.

It is not an unprimeable number, because it can be changed into a prime (7992739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135441 + ... + 135499.

It is an arithmetic number, because the mean of its divisors is an integer number (259200).

Almost surely, 2^7992730 is an apocalyptic number.

7992730 is an abundant number, since it is smaller than the sum of its proper divisors (8596070).

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

7992730 is a wasteful number, since it uses less digits than its factorization.

7992730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 7992730 is about 2827.1416660649. The cubic root of 7992730 is about 199.9393983057.

The spelling of 7992730 in words is "seven million, nine hundred ninety-two thousand, seven hundred thirty".