7790816 has 24 divisors (see below), whose sum is σ = 16733304. Its totient is φ = 3541120.

The previous prime is 7790803. The next prime is 7790819. The reversal of 7790816 is 6180977.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7790816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7790819) 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 3 ways as a sum of consecutive naturals, for example, 10715 + ... + 11418.

It is an arithmetic number, because the mean of its divisors is an integer number (697221).

Almost surely, 2^7790816 is an apocalyptic number.

It is an amenable number.

7790816 is an abundant number, since it is smaller than the sum of its proper divisors (8942488).

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

7790816 is a wasteful number, since it uses less digits than its factorization.

7790816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22154 (or 22146 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 7790816 is about 2791.2033247329. The cubic root of 7790816 is about 198.2413816317.

The spelling of 7790816 in words is "seven million, seven hundred ninety thousand, eight hundred sixteen".