70297879 has 2 divisors, whose sum is σ = 70297880. Its totient is φ = 70297878.

The previous prime is 70297859. The next prime is 70297901. The reversal of 70297879 is 97879207.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70297879 - 2⁵ = 70297847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70297859) 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, 35148939 + 35148940.

It is an arithmetic number, because the mean of its divisors is an integer number (35148940).

Almost surely, 2^70297879 is an apocalyptic number.

70297879 is a deficient number, since it is larger than the sum of its proper divisors (1).

70297879 is an equidigital number, since it uses as much as digits as its factorization.

70297879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 49.

The square root of 70297879 is about 8384.3830422995. The cubic root of 70297879 is about 412.7122952526.

The spelling of 70297879 in words is "seventy million, two hundred ninety-seven thousand, eight hundred seventy-nine".