70855679 has 2 divisors, whose sum is σ = 70855680. Its totient is φ = 70855678.

The previous prime is 70855669. The next prime is 70855723. The reversal of 70855679 is 97655807.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (97655807) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70855679 - 2²⁴ = 54078463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70855639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35427839 + 35427840.

It is an arithmetic number, because the mean of its divisors is an integer number (35427840).

Almost surely, 2^70855679 is an apocalyptic number.

70855679 is a deficient number, since it is larger than the sum of its proper divisors (1).

70855679 is an equidigital number, since it uses as much as digits as its factorization.

70855679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 70855679 is about 8417.5815410366. The cubic root of 70855679 is about 413.8010179785.

The spelling of 70855679 in words is "seventy million, eight hundred fifty-five thousand, six hundred seventy-nine".