7956820 has 24 divisors (see below), whose sum is σ = 17589600. Its totient is φ = 3015072.

The previous prime is 7956803. The next prime is 7956821. The reversal of 7956820 is 286597.

It is a self number, because there is not a number n which added to its sum of digits gives 7956820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7956821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10090 + ... + 10849.

It is an arithmetic number, because the mean of its divisors is an integer number (732900).

Almost surely, 2^7956820 is an apocalyptic number.

It is an amenable number.

7956820 is an abundant number, since it is smaller than the sum of its proper divisors (9632780).

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

7956820 is a wasteful number, since it uses less digits than its factorization.

7956820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20967 (or 20965 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 7956820 is about 2820.7835790787. The cubic root of 7956820 is about 199.6395173182.

The spelling of 7956820 in words is "seven million, nine hundred fifty-six thousand, eight hundred twenty".