70347913 has 2 divisors, whose sum is σ = 70347914. Its totient is φ = 70347912.

The previous prime is 70347877. The next prime is 70347929. The reversal of 70347913 is 31974307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38402809 + 31945104 = 6197^2 + 5652^2 .

It is a cyclic number.

It is not a de Polignac number, because 70347913 - 2¹³ = 70339721 is a prime.

It is not a weakly prime, because it can be changed into another prime (70344913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35173956 + 35173957.

It is an arithmetic number, because the mean of its divisors is an integer number (35173957).

Almost surely, 2^70347913 is an apocalyptic number.

It is an amenable number.

70347913 is a deficient number, since it is larger than the sum of its proper divisors (1).

70347913 is an equidigital number, since it uses as much as digits as its factorization.

70347913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 70347913 is about 8387.3662731515. The cubic root of 70347913 is about 412.8101870151.

The spelling of 70347913 in words is "seventy million, three hundred forty-seven thousand, nine hundred thirteen".