630633902 has 8 divisors (see below), whose sum is σ = 995737800. Its totient is φ = 298721304.

The previous prime is 630633889. The next prime is 630633907. The reversal of 630633902 is 209336036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630633907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8297777 + ... + 8297852.

It is an arithmetic number, because the mean of its divisors is an integer number (124467225).

Almost surely, 2^630633902 is an apocalyptic number.

630633902 is a deficient number, since it is larger than the sum of its proper divisors (365103898).

630633902 is a wasteful number, since it uses less digits than its factorization.

630633902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16595650.

The product of its (nonzero) digits is 17496, while the sum is 32.

The square root of 630633902 is about 25112.4252512576. The cubic root of 630633902 is about 857.5493156733.

Adding to 630633902 its reverse (209336036), we get a palindrome (839969938).

The spelling of 630633902 in words is "six hundred thirty million, six hundred thirty-three thousand, nine hundred two".