947969749 has 2 divisors, whose sum is σ = 947969750. Its totient is φ = 947969748.

The previous prime is 947969741. The next prime is 947969753.

It is a happy number.

947969749 is nontrivially palindromic in base 10.

947969749 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 can be written as a sum of positive squares in only one way, i.e., 666569124 + 281400625 = 25818^2 + 16775^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 947969749 - 2³ = 947969741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (947969741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473984874 + 473984875.

It is an arithmetic number, because the mean of its divisors is an integer number (473984875).

Almost surely, 2^947969749 is an apocalyptic number.

It is an amenable number.

947969749 is a deficient number, since it is larger than the sum of its proper divisors (1).

947969749 is an equidigital number, since it uses as much as digits as its factorization.

947969749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30862944, while the sum is 64.

The square root of 947969749 is about 30789.1173793599. The cubic root of 947969749 is about 982.3467806400.

The spelling of 947969749 in words is "nine hundred forty-seven million, nine hundred sixty-nine thousand, seven hundred forty-nine".