663291932 has 12 divisors (see below), whose sum is σ = 1189072416. Its totient is φ = 323556960.

The previous prime is 663291929. The next prime is 663291949. The reversal of 663291932 is 239192366.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 663291932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2022068 + ... + 2022395.

It is an arithmetic number, because the mean of its divisors is an integer number (99089368).

Almost surely, 2^663291932 is an apocalyptic number.

It is an amenable number.

663291932 is a deficient number, since it is larger than the sum of its proper divisors (525780484).

663291932 is a wasteful number, since it uses less digits than its factorization.

663291932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044508 (or 4044506 counting only the distinct ones).

The product of its digits is 104976, while the sum is 41.

The square root of 663291932 is about 25754.4546049805. The cubic root of 663291932 is about 872.1039193127.

The spelling of 663291932 in words is "six hundred sixty-three million, two hundred ninety-one thousand, nine hundred thirty-two".