909749713 has 4 divisors (see below), whose sum is σ = 963264420. Its totient is φ = 856235008.

The previous prime is 909749707. The next prime is 909749759. The reversal of 909749713 is 317947909.

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: 317947909 = 29 ⋅10963721.

It can be written as a sum of positive squares in 2 ways, for example, as 663165504 + 246584209 = 25752^2 + 15703^2 .

It is a cyclic number.

It is not a de Polignac number, because 909749713 - 2⁹ = 909749201 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (909743713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26757328 + ... + 26757361.

It is an arithmetic number, because the mean of its divisors is an integer number (240816105).

Almost surely, 2^909749713 is an apocalyptic number.

It is an amenable number.

909749713 is a deficient number, since it is larger than the sum of its proper divisors (53514707).

909749713 is a wasteful number, since it uses less digits than its factorization.

909749713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53514706.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 909749713 is about 30162.0575060787. The cubic root of 909749713 is about 968.9632572867.

The spelling of 909749713 in words is "nine hundred nine million, seven hundred forty-nine thousand, seven hundred thirteen".