715747969 has 2 divisors, whose sum is σ = 715747970. Its totient is φ = 715747968.

The previous prime is 715747919. The next prime is 715748009. The reversal of 715747969 is 969747517.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704106225 + 11641744 = 26535^2 + 3412^2 .

It is a cyclic number.

It is not a de Polignac number, because 715747969 - 2¹³ = 715739777 is a prime.

It is a super-2 number, since 2×715747969² = 1024590310255249922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (715747919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357873984 + 357873985.

It is an arithmetic number, because the mean of its divisors is an integer number (357873985).

Almost surely, 2^715747969 is an apocalyptic number.

It is an amenable number.

715747969 is a deficient number, since it is larger than the sum of its proper divisors (1).

715747969 is an equidigital number, since it uses as much as digits as its factorization.

715747969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3333960, while the sum is 55.

The square root of 715747969 is about 26753.4664856725. The cubic root of 715747969 is about 894.5131061637.

The spelling of 715747969 in words is "seven hundred fifteen million, seven hundred forty-seven thousand, nine hundred sixty-nine".