663378292 has 12 divisors (see below), whose sum is σ = 1164576420. Its totient is φ = 330642176.

The previous prime is 663378271. The next prime is 663378299. The reversal of 663378292 is 292873366.

663378292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 110376036 + 553002256 = 10506^2 + 23516^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663378299) 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, 260317 + ... + 262852.

It is an arithmetic number, because the mean of its divisors is an integer number (97048035).

Almost surely, 2^663378292 is an apocalyptic number.

It is an amenable number.

663378292 is a deficient number, since it is larger than the sum of its proper divisors (501198128).

663378292 is a wasteful number, since it uses less digits than its factorization.

663378292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523490 (or 523488 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 663378292 is about 25756.1311535720. The cubic root of 663378292 is about 872.1417667132.

The spelling of 663378292 in words is "six hundred sixty-three million, three hundred seventy-eight thousand, two hundred ninety-two".