633864794 has 4 divisors (see below), whose sum is σ = 950797194. Its totient is φ = 316932396.

The previous prime is 633864793. The next prime is 633864811. The reversal of 633864794 is 497468336.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 526473025 + 107391769 = 22945^2 + 10363^2 .

It is not an unprimeable number, because it can be changed into a prime (633864793) by changing a digit.

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 as a sum of consecutive naturals, namely, 158466197 + ... + 158466200.

Almost surely, 2^633864794 is an apocalyptic number.

633864794 is a deficient number, since it is larger than the sum of its proper divisors (316932400).

633864794 is a wasteful number, since it uses less digits than its factorization.

633864794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316932399.

The product of its digits is 2612736, while the sum is 50.

The square root of 633864794 is about 25176.6716227543. The cubic root of 633864794 is about 859.0113002281.

The spelling of 633864794 in words is "six hundred thirty-three million, eight hundred sixty-four thousand, seven hundred ninety-four".