70879 has 2 divisors, whose sum is σ = 70880. Its totient is φ = 70878.

The previous prime is 70877. The next prime is 70891. The reversal of 70879 is 97807.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70879 - 2¹ = 70877 is a prime.

Together with 70877, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 70879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35439 + 35440.

It is an arithmetic number, because the mean of its divisors is an integer number (35440).

2⁷⁰⁸⁷⁹ is an apocalyptic number.

70879 is a deficient number, since it is larger than the sum of its proper divisors (1).

70879 is an equidigital number, since it uses as much as digits as its factorization.

70879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 70879 is about 266.2311026158. The cubic root of 70879 is about 41.3846411635.

It can be divided in two parts, 708 and 79, that added together give a palindrome (787).

The spelling of 70879 in words is "seventy thousand, eight hundred seventy-nine".