633289028 has 12 divisors (see below), whose sum is σ = 1112040300. Its totient is φ = 315563232.

The previous prime is 633289021. The next prime is 633289031. The reversal of 633289028 is 820982336.

It can be written as a sum of positive squares in 2 ways, for example, as 287031364 + 346257664 = 16942^2 + 18608^2 .

It is a hoax number, since the sum of its digits (41) 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 (633289021) 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, 269003 + ... + 271346.

It is an arithmetic number, because the mean of its divisors is an integer number (92670025).

Almost surely, 2^633289028 is an apocalyptic number.

It is an amenable number.

633289028 is a deficient number, since it is larger than the sum of its proper divisors (478751272).

633289028 is a wasteful number, since it uses less digits than its factorization.

633289028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540646 (or 540644 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 633289028 is about 25165.2345111267. The cubic root of 633289028 is about 858.7511294300.

The spelling of 633289028 in words is "six hundred thirty-three million, two hundred eighty-nine thousand, twenty-eight".