763638066 has 24 divisors (see below), whose sum is σ = 1707922944. Its totient is φ = 246334680.

The previous prime is 763638059. The next prime is 763638091. The reversal of 763638066 is 660836367.

763638066 is a `hidden beast` number, since 7 + 6 + 3 + 638 + 0 + 6 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 683706 + ... + 684821.

It is an arithmetic number, because the mean of its divisors is an integer number (71163456).

Almost surely, 2^763638066 is an apocalyptic number.

763638066 is an abundant number, since it is smaller than the sum of its proper divisors (944284878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

763638066 is a wasteful number, since it uses less digits than its factorization.

763638066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368566 (or 1368563 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The square root of 763638066 is about 27634.0019903017. The cubic root of 763638066 is about 914.0343624510.

The spelling of 763638066 in words is "seven hundred sixty-three million, six hundred thirty-eight thousand, sixty-six".