709755913 has 4 divisors (see below), whose sum is σ = 723147588. Its totient is φ = 696364240.

The previous prime is 709755911. The next prime is 709755929. The reversal of 709755913 is 319557907.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319557907 = 67 ⋅4769521.

It can be written as a sum of positive squares in 2 ways, for example, as 583125904 + 126630009 = 24148^2 + 11253^2 .

It is a cyclic number.

It is not a de Polignac number, because 709755913 - 2¹ = 709755911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709755911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6695758 + ... + 6695863.

It is an arithmetic number, because the mean of its divisors is an integer number (180786897).

Almost surely, 2^709755913 is an apocalyptic number.

It is an amenable number.

709755913 is a deficient number, since it is larger than the sum of its proper divisors (13391675).

709755913 is a wasteful number, since it uses less digits than its factorization.

709755913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13391674.

The product of its (nonzero) digits is 297675, while the sum is 46.

The square root of 709755913 is about 26641.2445842907. The cubic root of 709755913 is about 892.0098972841.

The spelling of 709755913 in words is "seven hundred nine million, seven hundred fifty-five thousand, nine hundred thirteen".