715889 has 2 divisors, whose sum is σ = 715890. Its totient is φ = 715888.

The previous prime is 715879. The next prime is 715903. The reversal of 715889 is 988517.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 667489 + 48400 = 817^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 715889 - 2⁴ = 715873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (715849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357944 + 357945.

It is an arithmetic number, because the mean of its divisors is an integer number (357945).

2⁷¹⁵⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

715889 is a deficient number, since it is larger than the sum of its proper divisors (1).

715889 is an equidigital number, since it uses as much as digits as its factorization.

715889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 38.

The square root of 715889 is about 846.1022396850. The cubic root of 715889 is about 89.4571853935.

The spelling of 715889 in words is "seven hundred fifteen thousand, eight hundred eighty-nine".