7816992 has 48 divisors (see below), whose sum is σ = 20738592. Its totient is φ = 2577920.

The previous prime is 7816981. The next prime is 7816997. The reversal of 7816992 is 2996187.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×7816992² = 122210727856128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7816997) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9892 + ... + 10652.

It is an arithmetic number, because the mean of its divisors is an integer number (432054).

Almost surely, 2^7816992 is an apocalyptic number.

7816992 is the 2283-rd pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7816992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10369296).

7816992 is an abundant number, since it is smaller than the sum of its proper divisors (12921600).

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

7816992 is a wasteful number, since it uses less digits than its factorization.

7816992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 873 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 7816992 is about 2795.8884097903. Note that the first 3 decimals coincide. The cubic root of 7816992 is about 198.4631541057.

The spelling of 7816992 in words is "seven million, eight hundred sixteen thousand, nine hundred ninety-two".