3721135889 has 2 divisors, whose sum is σ = 3721135890. Its totient is φ = 3721135888.

The previous prime is 3721135867. The next prime is 3721135907. The reversal of 3721135889 is 9885311273.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3272755264 + 448380625 = 57208^2 + 21175^2 .

It is a cyclic number.

It is not a de Polignac number, because 3721135889 - 2⁸ = 3721135633 is a prime.

It is not a weakly prime, because it can be changed into another prime (3721135819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1860567944 + 1860567945.

It is an arithmetic number, because the mean of its divisors is an integer number (1860567945).

Almost surely, 2^3721135889 is an apocalyptic number.

It is an amenable number.

3721135889 is a deficient number, since it is larger than the sum of its proper divisors (1).

3721135889 is an equidigital number, since it uses as much as digits as its factorization.

3721135889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The square root of 3721135889 is about 61001.1138340932. The cubic root of 3721135889 is about 1549.6198705706.

The spelling of 3721135889 in words is "three billion, seven hundred twenty-one million, one hundred thirty-five thousand, eight hundred eighty-nine".