940911709 has 2 divisors, whose sum is σ = 940911710. Its totient is φ = 940911708.

The previous prime is 940911707. The next prime is 940911731. The reversal of 940911709 is 907119049.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 936543609 + 4368100 = 30603^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 940911709 - 2¹ = 940911707 is a prime.

Together with 940911707, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (940911707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470455854 + 470455855.

It is an arithmetic number, because the mean of its divisors is an integer number (470455855).

Almost surely, 2^940911709 is an apocalyptic number.

It is an amenable number.

940911709 is a deficient number, since it is larger than the sum of its proper divisors (1).

940911709 is an equidigital number, since it uses as much as digits as its factorization.

940911709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 940911709 is about 30674.2841644267. The cubic root of 940911709 is about 979.9027076119.

The spelling of 940911709 in words is "nine hundred forty million, nine hundred eleven thousand, seven hundred nine".