809663332 has 12 divisors (see below), whose sum is σ = 1462617856. Its totient is φ = 391772520.

The previous prime is 809663299. The next prime is 809663333. The reversal of 809663332 is 233366908.

It is a super-2 number, since 2×809663332² = 1311109422370684448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (809663333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3264648 + ... + 3264895.

Almost surely, 2^809663332 is an apocalyptic number.

It is an amenable number.

809663332 is a deficient number, since it is larger than the sum of its proper divisors (652954524).

809663332 is a wasteful number, since it uses less digits than its factorization.

809663332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6529578 (or 6529576 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 809663332 is about 28454.5836729340. The cubic root of 809663332 is about 932.0405850305.

The spelling of 809663332 in words is "eight hundred nine million, six hundred sixty-three thousand, three hundred thirty-two".