749406013 has 2 divisors, whose sum is σ = 749406014. Its totient is φ = 749406012.

The previous prime is 749406001. The next prime is 749406083. The reversal of 749406013 is 310604947.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 642014244 + 107391769 = 25338^2 + 10363^2 .

It is a cyclic number.

It is not a de Polignac number, because 749406013 - 2⁵ = 749405981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 749406013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749406083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374703006 + 374703007.

It is an arithmetic number, because the mean of its divisors is an integer number (374703007).

Almost surely, 2^749406013 is an apocalyptic number.

It is an amenable number.

749406013 is a deficient number, since it is larger than the sum of its proper divisors (1).

749406013 is an equidigital number, since it uses as much as digits as its factorization.

749406013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 749406013 is about 27375.2810579179. The cubic root of 749406013 is about 908.3203783992.

The spelling of 749406013 in words is "seven hundred forty-nine million, four hundred six thousand, thirteen".