769999949 has 2 divisors, whose sum is σ = 769999950. Its totient is φ = 769999948.

The previous prime is 769999897. The next prime is 769999963. The reversal of 769999949 is 949999967.

769999949 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., 729270025 + 40729924 = 27005^2 + 6382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-769999949 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (769999249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384999974 + 384999975.

It is an arithmetic number, because the mean of its divisors is an integer number (384999975).

Almost surely, 2^769999949 is an apocalyptic number.

It is an amenable number.

769999949 is a deficient number, since it is larger than the sum of its proper divisors (1).

769999949 is an equidigital number, since it uses as much as digits as its factorization.

769999949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 89282088, while the sum is 71.

The square root of 769999949 is about 27748.8729320670. The cubic root of 769999949 is about 916.5656251972.

The spelling of 769999949 in words is "seven hundred sixty-nine million, nine hundred ninety-nine thousand, nine hundred forty-nine".