3733932721 has 2 divisors, whose sum is σ = 3733932722. Its totient is φ = 3733932720.

The previous prime is 3733932673. The next prime is 3733932749. The reversal of 3733932721 is 1272393373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2023200400 + 1710732321 = 44980^2 + 41361^2 .

It is a cyclic number.

It is not a de Polignac number, because 3733932721 - 2¹³ = 3733924529 is a prime.

It is not a weakly prime, because it can be changed into another prime (3733932781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1866966360 + 1866966361.

It is an arithmetic number, because the mean of its divisors is an integer number (1866966361).

Almost surely, 2^3733932721 is an apocalyptic number.

It is an amenable number.

3733932721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3733932721 is an equidigital number, since it uses as much as digits as its factorization.

3733932721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 40.

The square root of 3733932721 is about 61105.9139609253. The cubic root of 3733932721 is about 1551.3941976663.

The spelling of 3733932721 in words is "three billion, seven hundred thirty-three million, nine hundred thirty-two thousand, seven hundred twenty-one".