3403720997 has 2 divisors, whose sum is σ = 3403720998. Its totient is φ = 3403720996.

The previous prime is 3403720967. The next prime is 3403721077. The reversal of 3403720997 is 7990273043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2175849316 + 1227871681 = 46646^2 + 35041^2 .

It is a cyclic number.

It is not a de Polignac number, because 3403720997 - 2⁸ = 3403720741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3403720927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1701860498 + 1701860499.

It is an arithmetic number, because the mean of its divisors is an integer number (1701860499).

Almost surely, 2^3403720997 is an apocalyptic number.

It is an amenable number.

3403720997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3403720997 is an equidigital number, since it uses as much as digits as its factorization.

3403720997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 44.

The square root of 3403720997 is about 58341.4175093475. The cubic root of 3403720997 is about 1504.2429494556.

The spelling of 3403720997 in words is "three billion, four hundred three million, seven hundred twenty thousand, nine hundred ninety-seven".