715939489 has 2 divisors, whose sum is σ = 715939490. Its totient is φ = 715939488.

The previous prime is 715939403. The next prime is 715939519. The reversal of 715939489 is 984939517.

715939489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 617771025 + 98168464 = 24855^2 + 9908^2 .

It is an emirp because it is prime and its reverse (984939517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 715939489 - 2¹⁵ = 715906721 is a prime.

It is a super-2 number, since 2×715939489² = 1025138703819162242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (715930489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357969744 + 357969745.

It is an arithmetic number, because the mean of its divisors is an integer number (357969745).

Almost surely, 2^715939489 is an apocalyptic number.

It is an amenable number.

715939489 is a deficient number, since it is larger than the sum of its proper divisors (1).

715939489 is an equidigital number, since it uses as much as digits as its factorization.

715939489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 55.

The square root of 715939489 is about 26757.0455955062. The cubic root of 715939489 is about 894.5928837201.

The spelling of 715939489 in words is "seven hundred fifteen million, nine hundred thirty-nine thousand, four hundred eighty-nine".