70404013 has 2 divisors, whose sum is σ = 70404014. Its totient is φ = 70404012.

The previous prime is 70403951. The next prime is 70404023. The reversal of 70404013 is 31040407.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55681444 + 14722569 = 7462^2 + 3837^2 .

It is an emirp because it is prime and its reverse (31040407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70404013 - 2¹³ = 70395821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70404023) 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, 35202006 + 35202007.

It is an arithmetic number, because the mean of its divisors is an integer number (35202007).

Almost surely, 2^70404013 is an apocalyptic number.

It is an amenable number.

70404013 is a deficient number, since it is larger than the sum of its proper divisors (1).

70404013 is an equidigital number, since it uses as much as digits as its factorization.

70404013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 70404013 is about 8390.7099222891. The cubic root of 70404013 is about 412.9198917534.

The spelling of 70404013 in words is "seventy million, four hundred four thousand, thirteen".