70105279 has 2 divisors, whose sum is σ = 70105280. Its totient is φ = 70105278.

The previous prime is 70105271. The next prime is 70105303. The reversal of 70105279 is 97250107.

It is a weak prime.

It is an emirp because it is prime and its reverse (97250107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70105279 - 2³ = 70105271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70105279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70105271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35052639 + 35052640.

It is an arithmetic number, because the mean of its divisors is an integer number (35052640).

Almost surely, 2^70105279 is an apocalyptic number.

70105279 is a deficient number, since it is larger than the sum of its proper divisors (1).

70105279 is an equidigital number, since it uses as much as digits as its factorization.

70105279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 70105279 is about 8372.8895251281. The cubic root of 70105279 is about 412.3350382941.

The spelling of 70105279 in words is "seventy million, one hundred five thousand, two hundred seventy-nine".