70568279 has 2 divisors, whose sum is σ = 70568280. Its totient is φ = 70568278.

The previous prime is 70568263. The next prime is 70568357. The reversal of 70568279 is 97286507.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70568279 - 2⁴ = 70568263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70561279) 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, 35284139 + 35284140.

It is an arithmetic number, because the mean of its divisors is an integer number (35284140).

Almost surely, 2^70568279 is an apocalyptic number.

70568279 is a deficient number, since it is larger than the sum of its proper divisors (1).

70568279 is an equidigital number, since it uses as much as digits as its factorization.

70568279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 70568279 is about 8400.4927831646. The cubic root of 70568279 is about 413.2407826226.

The spelling of 70568279 in words is "seventy million, five hundred sixty-eight thousand, two hundred seventy-nine".