708685493 has 2 divisors, whose sum is σ = 708685494. Its totient is φ = 708685492.

The previous prime is 708685433. The next prime is 708685507. The reversal of 708685493 is 394586807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 698174929 + 10510564 = 26423^2 + 3242^2 .

It is a cyclic number.

It is not a de Polignac number, because 708685493 - 2¹⁴ = 708669109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (708685433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354342746 + 354342747.

It is an arithmetic number, because the mean of its divisors is an integer number (354342747).

Almost surely, 2^708685493 is an apocalyptic number.

It is an amenable number.

708685493 is a deficient number, since it is larger than the sum of its proper divisors (1).

708685493 is an equidigital number, since it uses as much as digits as its factorization.

708685493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 708685493 is about 26621.1474771468. The cubic root of 708685493 is about 891.5612427412.

The spelling of 708685493 in words is "seven hundred eight million, six hundred eighty-five thousand, four hundred ninety-three".