708619997 has 2 divisors, whose sum is σ = 708619998. Its totient is φ = 708619996.

The previous prime is 708619969. The next prime is 708619999. The reversal of 708619997 is 799916807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704318521 + 4301476 = 26539^2 + 2074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-708619997 is a prime.

Together with 708619999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (708619999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354309998 + 354309999.

It is an arithmetic number, because the mean of its divisors is an integer number (354309999).

Almost surely, 2^708619997 is an apocalyptic number.

It is an amenable number.

708619997 is a deficient number, since it is larger than the sum of its proper divisors (1).

708619997 is an equidigital number, since it uses as much as digits as its factorization.

708619997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 56.

The square root of 708619997 is about 26619.9172988948. The cubic root of 708619997 is about 891.5337761641.

The spelling of 708619997 in words is "seven hundred eight million, six hundred nineteen thousand, nine hundred ninety-seven".