3793465721 has 2 divisors, whose sum is σ = 3793465722. Its totient is φ = 3793465720.

The previous prime is 3793465681. The next prime is 3793465733. The reversal of 3793465721 is 1275643973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3333792121 + 459673600 = 57739^2 + 21440^2 .

It is a cyclic number.

It is not a de Polignac number, because 3793465721 - 2⁶ = 3793465657 is a prime.

It is not a weakly prime, because it can be changed into another prime (3793465021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1896732860 + 1896732861.

It is an arithmetic number, because the mean of its divisors is an integer number (1896732861).

Almost surely, 2^3793465721 is an apocalyptic number.

It is an amenable number.

3793465721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3793465721 is an equidigital number, since it uses as much as digits as its factorization.

3793465721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 47.

The square root of 3793465721 is about 61591.1172248077. The cubic root of 3793465721 is about 1559.5957917526.

The spelling of 3793465721 in words is "three billion, seven hundred ninety-three million, four hundred sixty-five thousand, seven hundred twenty-one".