734640013 has 2 divisors, whose sum is σ = 734640014. Its totient is φ = 734640012.

The previous prime is 734639999. The next prime is 734640017. The reversal of 734640013 is 310046437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 696854404 + 37785609 = 26398^2 + 6147^2 .

It is a cyclic number.

It is not a de Polignac number, because 734640013 - 2²¹ = 732542861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (734640017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367320006 + 367320007.

It is an arithmetic number, because the mean of its divisors is an integer number (367320007).

Almost surely, 2^734640013 is an apocalyptic number.

It is an amenable number.

734640013 is a deficient number, since it is larger than the sum of its proper divisors (1).

734640013 is an equidigital number, since it uses as much as digits as its factorization.

734640013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 734640013 is about 27104.2434500578. The cubic root of 734640013 is about 902.3150330339.

The spelling of 734640013 in words is "seven hundred thirty-four million, six hundred forty thousand, thirteen".