766963633 has 6 divisors (see below), whose sum is σ = 809455074. Its totient is φ = 726596784.

The previous prime is 766963621. The next prime is 766963649. The reversal of 766963633 is 336369667.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 479084544 + 287879089 = 21888^2 + 16967^2 .

It is not a de Polignac number, because 766963633 - 2⁵ = 766963601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (766963663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1061916 + ... + 1062637.

It is an arithmetic number, because the mean of its divisors is an integer number (134909179).

Almost surely, 2^766963633 is an apocalyptic number.

It is an amenable number.

766963633 is a deficient number, since it is larger than the sum of its proper divisors (42491441).

766963633 is a wasteful number, since it uses less digits than its factorization.

766963633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124591 (or 2124572 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 49.

The square root of 766963633 is about 27694.1082723384. The cubic root of 766963633 is about 915.3592835921.

The spelling of 766963633 in words is "seven hundred sixty-six million, nine hundred sixty-three thousand, six hundred thirty-three".