715763729 has 2 divisors, whose sum is σ = 715763730. Its totient is φ = 715763728.

The previous prime is 715763693. The next prime is 715763731. The reversal of 715763729 is 927367517.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 625000000 + 90763729 = 25000^2 + 9527^2 .

It is an emirp because it is prime and its reverse (927367517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 715763729 - 2²⁴ = 698986513 is a prime.

It is a Sophie Germain prime.

Together with 715763731, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (715763429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357881864 + 357881865.

It is an arithmetic number, because the mean of its divisors is an integer number (357881865).

Almost surely, 2^715763729 is an apocalyptic number.

It is an amenable number.

715763729 is a deficient number, since it is larger than the sum of its proper divisors (1).

715763729 is an equidigital number, since it uses as much as digits as its factorization.

715763729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 555660, while the sum is 47.

The square root of 715763729 is about 26753.7610253213. The cubic root of 715763729 is about 894.5196715208.

The spelling of 715763729 in words is "seven hundred fifteen million, seven hundred sixty-three thousand, seven hundred twenty-nine".