70345579 has 2 divisors, whose sum is σ = 70345580. Its totient is φ = 70345578.

The previous prime is 70345567. The next prime is 70345589. The reversal of 70345579 is 97554307.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70345579 - 2²³ = 61956971 is a prime.

It is not a weakly prime, because it can be changed into another prime (70345519) 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, 35172789 + 35172790.

It is an arithmetic number, because the mean of its divisors is an integer number (35172790).

Almost surely, 2^70345579 is an apocalyptic number.

70345579 is a deficient number, since it is larger than the sum of its proper divisors (1).

70345579 is an equidigital number, since it uses as much as digits as its factorization.

70345579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 70345579 is about 8387.2271341606. The cubic root of 70345579 is about 412.8056215651.

The spelling of 70345579 in words is "seventy million, three hundred forty-five thousand, five hundred seventy-nine".