7998816 has 48 divisors (see below), whose sum is σ = 23998464. Its totient is φ = 2285184.

The previous prime is 7998803. The next prime is 7998827. The reversal of 7998816 is 6188997.

It is a happy number.

7998816 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5280 + ... + 6623.

It is an arithmetic number, because the mean of its divisors is an integer number (499968).

Almost surely, 2^7998816 is an apocalyptic number.

It is an amenable number.

7998816 is an abundant number, since it is smaller than the sum of its proper divisors (15999648).

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

7998816 is a wasteful number, since it uses less digits than its factorization.

7998816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11923 (or 11915 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 7998816 is about 2828.2178133942. The cubic root of 7998816 is about 199.9901328465.

The spelling of 7998816 in words is "seven million, nine hundred ninety-eight thousand, eight hundred sixteen".