3722891873 has 2 divisors, whose sum is σ = 3722891874. Its totient is φ = 3722891872.

The previous prime is 3722891867. The next prime is 3722891891. The reversal of 3722891873 is 3781982273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3671511649 + 51380224 = 60593^2 + 7168^2 .

It is a cyclic number.

It is not a de Polignac number, because 3722891873 - 2²⁰ = 3721843297 is a prime.

It is not a weakly prime, because it can be changed into another prime (3722891813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1861445936 + 1861445937.

It is an arithmetic number, because the mean of its divisors is an integer number (1861445937).

Almost surely, 2^3722891873 is an apocalyptic number.

It is an amenable number.

3722891873 is a deficient number, since it is larger than the sum of its proper divisors (1).

3722891873 is an equidigital number, since it uses as much as digits as its factorization.

3722891873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 50.

The square root of 3722891873 is about 61015.5051851576. The cubic root of 3722891873 is about 1549.8635846646.

The spelling of 3722891873 in words is "three billion, seven hundred twenty-two million, eight hundred ninety-one thousand, eight hundred seventy-three".