708139 has 2 divisors, whose sum is σ = 708140. Its totient is φ = 708138.

The previous prime is 708137. The next prime is 708161. The reversal of 708139 is 931807.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 708139 - 2¹ = 708137 is a prime.

Together with 708137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (708131) 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, 354069 + 354070.

It is an arithmetic number, because the mean of its divisors is an integer number (354070).

2⁷⁰⁸¹³⁹ is an apocalyptic number.

708139 is a deficient number, since it is larger than the sum of its proper divisors (1).

708139 is an equidigital number, since it uses as much as digits as its factorization.

708139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 708139 is about 841.5099524070. The cubic root of 708139 is about 89.1332012108.

The spelling of 708139 in words is "seven hundred eight thousand, one hundred thirty-nine".