708304623403921 has 2 divisors, whose sum is σ = 708304623403922. Its totient is φ = 708304623403920.

The previous prime is 708304623403889. The next prime is 708304623403999. The reversal of 708304623403921 is 129304326403807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 421387945285696 + 286916678118225 = 20527736^2 + 16938615^2 .

It is a cyclic number.

It is not a de Polignac number, because 708304623403921 - 2⁵ = 708304623403889 is a prime.

It is not a weakly prime, because it can be changed into another prime (708304623403121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354152311701960 + 354152311701961.

It is an arithmetic number, because the mean of its divisors is an integer number (354152311701961).

Almost surely, 2^{708304623403921} is an apocalyptic number.

It is an amenable number.

708304623403921 is a deficient number, since it is larger than the sum of its proper divisors (1).

708304623403921 is an equidigital number, since it uses as much as digits as its factorization.

708304623403921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 708304623403921 in words is "seven hundred eight trillion, three hundred four billion, six hundred twenty-three million, four hundred three thousand, nine hundred twenty-one".