3673501721 has 2 divisors, whose sum is σ = 3673501722. Its totient is φ = 3673501720.

The previous prime is 3673501669. The next prime is 3673501813. The reversal of 3673501721 is 1271053763.

3673501721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3222151696 + 451350025 = 56764^2 + 21245^2 .

It is a cyclic number.

It is not a de Polignac number, because 3673501721 - 2¹⁰ = 3673500697 is a prime.

It is a super-2 number, since 2×3673501721² = 26989229788379923682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3673501621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1836750860 + 1836750861.

It is an arithmetic number, because the mean of its divisors is an integer number (1836750861).

Almost surely, 2^3673501721 is an apocalyptic number.

It is an amenable number.

3673501721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3673501721 is an equidigital number, since it uses as much as digits as its factorization.

3673501721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 3673501721 is about 60609.4194082075. The cubic root of 3673501721 is about 1542.9792387792.

The spelling of 3673501721 in words is "three billion, six hundred seventy-three million, five hundred one thousand, seven hundred twenty-one".