7921956 has 24 divisors (see below), whose sum is σ = 21125440. Its totient is φ = 2263392.

The previous prime is 7921943. The next prime is 7921981. The reversal of 7921956 is 6591297.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 47071 + ... + 47238.

Almost surely, 2^7921956 is an apocalyptic number.

It is an amenable number.

7921956 is an abundant number, since it is smaller than the sum of its proper divisors (13203484).

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

7921956 is a wasteful number, since it uses less digits than its factorization.

7921956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94323 (or 94321 counting only the distinct ones).

The product of its digits is 34020, while the sum is 39.

The square root of 7921956 is about 2814.5969516078. The cubic root of 7921956 is about 199.3475069122.

The spelling of 7921956 in words is "seven million, nine hundred twenty-one thousand, nine hundred fifty-six".