7921963 has 16 divisors (see below), whose sum is σ = 9351936. Its totient is φ = 6570720.

The previous prime is 7921943. The next prime is 7921981. The reversal of 7921963 is 3691297.

7921963 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7921963 - 2⁵ = 7921931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7921943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48520 + ... + 48682.

It is an arithmetic number, because the mean of its divisors is an integer number (584496).

Almost surely, 2^7921963 is an apocalyptic number.

7921963 is a deficient number, since it is larger than the sum of its proper divisors (1429973).

7921963 is a wasteful number, since it uses less digits than its factorization.

7921963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354.

The product of its digits is 20412, while the sum is 37.

The square root of 7921963 is about 2814.5981951248. The cubic root of 7921963 is about 199.3475656280.

The spelling of 7921963 in words is "seven million, nine hundred twenty-one thousand, nine hundred sixty-three".