70068881 has 2 divisors, whose sum is σ = 70068882. Its totient is φ = 70068880.

The previous prime is 70068871. The next prime is 70068893. The reversal of 70068881 is 18886007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37761025 + 32307856 = 6145^2 + 5684^2 .

It is a cyclic number.

It is not a de Polignac number, because 70068881 - 2²⁶ = 2960017 is a prime.

It is a super-2 number, since 2×70068881² = 9819296169184322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70068811) 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, 35034440 + 35034441.

It is an arithmetic number, because the mean of its divisors is an integer number (35034441).

Almost surely, 2^70068881 is an apocalyptic number.

It is an amenable number.

70068881 is a deficient number, since it is larger than the sum of its proper divisors (1).

70068881 is an equidigital number, since it uses as much as digits as its factorization.

70068881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 70068881 is about 8370.7156802749. The cubic root of 70068881 is about 412.2636657857.

The spelling of 70068881 in words is "seventy million, sixty-eight thousand, eight hundred eighty-one".