3722065637 has 2 divisors, whose sum is σ = 3722065638. Its totient is φ = 3722065636.

The previous prime is 3722065603. The next prime is 3722065661. The reversal of 3722065637 is 7365602273.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1945780321 + 1776285316 = 44111^2 + 42146^2 .

It is a cyclic number.

It is not a de Polignac number, because 3722065637 - 2²⁸ = 3453630181 is a prime.

It is a super-2 number, since 2×3722065637² = 27707545212272431538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3722065594 and 3722065603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3722065537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1861032818 + 1861032819.

It is an arithmetic number, because the mean of its divisors is an integer number (1861032819).

Almost surely, 2^3722065637 is an apocalyptic number.

It is an amenable number.

3722065637 is a deficient number, since it is larger than the sum of its proper divisors (1).

3722065637 is an equidigital number, since it uses as much as digits as its factorization.

3722065637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 41.

The square root of 3722065637 is about 61008.7341042248. The cubic root of 3722065637 is about 1549.7489204128.

The spelling of 3722065637 in words is "three billion, seven hundred twenty-two million, sixty-five thousand, six hundred thirty-seven".