709394969 has 8 divisors (see below), whose sum is σ = 729177288. Its totient is φ = 689644800.

The previous prime is 709394953. The next prime is 709394981. The reversal of 709394969 is 969493907.

It can be written as a sum of positive squares in 4 ways, for example, as 129163225 + 580231744 = 11365^2 + 24088^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 709394969 - 2⁴ = 709394953 is a prime.

It is a super-3 number, since 3×709394969³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709394369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40769 + ... + 55505.

It is an arithmetic number, because the mean of its divisors is an integer number (91147161).

Almost surely, 2^709394969 is an apocalyptic number.

It is an amenable number.

709394969 is a deficient number, since it is larger than the sum of its proper divisors (19782319).

709394969 is a wasteful number, since it uses less digits than its factorization.

709394969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16075.

The product of its (nonzero) digits is 3306744, while the sum is 56.

The square root of 709394969 is about 26634.4695648327. The cubic root of 709394969 is about 891.8586620927.

The spelling of 709394969 in words is "seven hundred nine million, three hundred ninety-four thousand, nine hundred sixty-nine".