7924992 has 72 divisors (see below), whose sum is σ = 22369536. Its totient is φ = 2482176.

The previous prime is 7924991. The next prime is 7925017. The reversal of 7924992 is 2994297.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7924991) 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, 12753 + ... + 13359.

It is an arithmetic number, because the mean of its divisors is an integer number (310688).

Almost surely, 2^7924992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7924992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11184768).

7924992 is an abundant number, since it is smaller than the sum of its proper divisors (14444544).

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

7924992 is a wasteful number, since it uses less digits than its factorization.

7924992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 629 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 7924992 is about 2815.1362311618. The cubic root of 7924992 is about 199.3729695518.

The spelling of 7924992 in words is "seven million, nine hundred twenty-four thousand, nine hundred ninety-two".