70344013 has 2 divisors, whose sum is σ = 70344014. Its totient is φ = 70344012.

The previous prime is 70343983. The next prime is 70344059. The reversal of 70344013 is 31044307.

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., 53187849 + 17156164 = 7293^2 + 4142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70344013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70344713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35172006 + 35172007.

It is an arithmetic number, because the mean of its divisors is an integer number (35172007).

Almost surely, 2^70344013 is an apocalyptic number.

It is an amenable number.

70344013 is a deficient number, since it is larger than the sum of its proper divisors (1).

70344013 is an equidigital number, since it uses as much as digits as its factorization.

70344013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 70344013 is about 8387.1337773998. The cubic root of 70344013 is about 412.8025583146.

The spelling of 70344013 in words is "seventy million, three hundred forty-four thousand, thirteen".