70568539 has 2 divisors, whose sum is σ = 70568540. Its totient is φ = 70568538.

The previous prime is 70568501. The next prime is 70568551. The reversal of 70568539 is 93586507.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70568539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70568495 and 70568504.

It is not a weakly prime, because it can be changed into another prime (70568639) 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, 35284269 + 35284270.

It is an arithmetic number, because the mean of its divisors is an integer number (35284270).

Almost surely, 2^70568539 is an apocalyptic number.

70568539 is a deficient number, since it is larger than the sum of its proper divisors (1).

70568539 is an equidigital number, since it uses as much as digits as its factorization.

70568539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 70568539 is about 8400.5082584329. The cubic root of 70568539 is about 413.2412901333.

The spelling of 70568539 in words is "seventy million, five hundred sixty-eight thousand, five hundred thirty-nine".