7927992 has 48 divisors (see below), whose sum is σ = 21645000. Its totient is φ = 2621376.

The previous prime is 7927979. The next prime is 7927999. The reversal of 7927992 is 2997297.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7927999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10359 + ... + 11097.

Almost surely, 2^7927992 is an apocalyptic number.

7927992 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7927992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10822500).

7927992 is an abundant number, since it is smaller than the sum of its proper divisors (13717008).

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

7927992 is a wasteful number, since it uses less digits than its factorization.

7927992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 893 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 7927992 is about 2815.6690146393. The cubic root of 7927992 is about 199.3981238759.

The spelling of 7927992 in words is "seven million, nine hundred twenty-seven thousand, nine hundred ninety-two".