763317949 has 4 divisors (see below), whose sum is σ = 775831420. Its totient is φ = 750804480.

The previous prime is 763317943. The next prime is 763317959. The reversal of 763317949 is 949713367.

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: 949713367 = 977 ⋅972071.

It can be written as a sum of positive squares in 2 ways, for example, as 58415449 + 704902500 = 7643^2 + 26550^2 .

It is a cyclic number.

It is not a de Polignac number, because 763317949 - 2³ = 763317941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (763317941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6256644 + ... + 6256765.

It is an arithmetic number, because the mean of its divisors is an integer number (193957855).

Almost surely, 2^763317949 is an apocalyptic number.

It is an amenable number.

763317949 is a deficient number, since it is larger than the sum of its proper divisors (12513471).

763317949 is a wasteful number, since it uses less digits than its factorization.

763317949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12513470.

The product of its digits is 857304, while the sum is 49.

The square root of 763317949 is about 27628.2092977449. The cubic root of 763317949 is about 913.9066235625.

The spelling of 763317949 in words is "seven hundred sixty-three million, three hundred seventeen thousand, nine hundred forty-nine".