7918992 has 80 divisors (see below), whose sum is σ = 23748480. Its totient is φ = 2521728.

The previous prime is 7918987. The next prime is 7919003. The reversal of 7918992 is 2998197.

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 zygodrome in base 3.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9538 + ... + 10334.

It is an arithmetic number, because the mean of its divisors is an integer number (296856).

Almost surely, 2^7918992 is an apocalyptic number.

7918992 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 7918992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11874240).

7918992 is an abundant number, since it is smaller than the sum of its proper divisors (15829488).

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

7918992 is a wasteful number, since it uses less digits than its factorization.

7918992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 825 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 7918992 is about 2814.0703615937. The cubic root of 7918992 is about 199.3226418529.

The spelling of 7918992 in words is "seven million, nine hundred eighteen thousand, nine hundred ninety-two".