3921613922 has 6 divisors (see below), whose sum is σ = 5882553729. Its totient is φ = 1960762680.

The previous prime is 3921613909. The next prime is 3921613931. The reversal of 3921613922 is 2293161293.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3571138081 + 350475841 = 59759^2 + 18721^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=44281.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 66422 + ... + 110702.

Almost surely, 2^3921613922 is an apocalyptic number.

3921613922 is a deficient number, since it is larger than the sum of its proper divisors (1960939807).

3921613922 is an frugal number, since it uses more digits than its factorization.

3921613922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88564 (or 44283 counting only the distinct ones).

The product of its digits is 34992, while the sum is 38.

The square root of 3921613922 is about 62622.7907554430. The cubic root of 3921613922 is about 1576.9633929584.

The spelling of 3921613922 in words is "three billion, nine hundred twenty-one million, six hundred thirteen thousand, nine hundred twenty-two".