708429881 has 2 divisors, whose sum is σ = 708429882. Its totient is φ = 708429880.

The previous prime is 708429871. The next prime is 708429889. The reversal of 708429881 is 188924807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659205625 + 49224256 = 25675^2 + 7016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-708429881 is a prime.

It is a super-2 number, since 2×708429881² = 1003745792587348322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (708429889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354214940 + 354214941.

It is an arithmetic number, because the mean of its divisors is an integer number (354214941).

Almost surely, 2^708429881 is an apocalyptic number.

It is an amenable number.

708429881 is a deficient number, since it is larger than the sum of its proper divisors (1).

708429881 is an equidigital number, since it uses as much as digits as its factorization.

708429881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 708429881 is about 26616.3461241396. The cubic root of 708429881 is about 891.4540390242.

The spelling of 708429881 in words is "seven hundred eight million, four hundred twenty-nine thousand, eight hundred eighty-one".