663731030 has 16 divisors (see below), whose sum is σ = 1195042464. Its totient is φ = 265419840.

The previous prime is 663730999. The next prime is 663731041. The reversal of 663731030 is 30137366.

It is a junction number, because it is equal to n+sod(n) for n = 663730984 and 663731002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44279 + ... + 57341.

It is an arithmetic number, because the mean of its divisors is an integer number (74690154).

Almost surely, 2^663731030 is an apocalyptic number.

663731030 is a deficient number, since it is larger than the sum of its proper divisors (531311434).

663731030 is a wasteful number, since it uses less digits than its factorization.

663731030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18151.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 663731030 is about 25762.9778946456. The cubic root of 663731030 is about 872.2963205757.

Adding to 663731030 its reverse (30137366), we get a palindrome (693868396).

The spelling of 663731030 in words is "six hundred sixty-three million, seven hundred thirty-one thousand, thirty".