708538889 has 2 divisors, whose sum is σ = 708538890. Its totient is φ = 708538888.

The previous prime is 708538877. The next prime is 708538951. The reversal of 708538889 is 988835807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 684607225 + 23931664 = 26165^2 + 4892^2 .

It is an emirp because it is prime and its reverse (988835807) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-708538889 is a prime.

It is not a weakly prime, because it can be changed into another prime (708535889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354269444 + 354269445.

It is an arithmetic number, because the mean of its divisors is an integer number (354269445).

Almost surely, 2^708538889 is an apocalyptic number.

It is an amenable number.

708538889 is a deficient number, since it is larger than the sum of its proper divisors (1).

708538889 is an equidigital number, since it uses as much as digits as its factorization.

708538889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 56.

The square root of 708538889 is about 26618.3938095446. The cubic root of 708538889 is about 891.4997601513.

The spelling of 708538889 in words is "seven hundred eight million, five hundred thirty-eight thousand, eight hundred eighty-nine".