949315691 has 2 divisors, whose sum is σ = 949315692. Its totient is φ = 949315690.

The previous prime is 949315657. The next prime is 949315699. The reversal of 949315691 is 196513949.

It is a happy number.

949315691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-949315691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (949315699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474657845 + 474657846.

It is an arithmetic number, because the mean of its divisors is an integer number (474657846).

Almost surely, 2^949315691 is an apocalyptic number.

949315691 is a deficient number, since it is larger than the sum of its proper divisors (1).

949315691 is an equidigital number, since it uses as much as digits as its factorization.

949315691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 47.

The square root of 949315691 is about 30810.9670572022. The cubic root of 949315691 is about 982.8114777937.

The spelling of 949315691 in words is "nine hundred forty-nine million, three hundred fifteen thousand, six hundred ninety-one".