636298994 has 8 divisors (see below), whose sum is σ = 985237248. Its totient is φ = 307886580.

The previous prime is 636298981. The next prime is 636299009. The reversal of 636298994 is 499892636.

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

It is an unprimeable number.

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, 5131382 + ... + 5131505.

It is an arithmetic number, because the mean of its divisors is an integer number (123154656).

Almost surely, 2^636298994 is an apocalyptic number.

636298994 is a deficient number, since it is larger than the sum of its proper divisors (348938254).

636298994 is a wasteful number, since it uses less digits than its factorization.

636298994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262920.

The product of its digits is 5038848, while the sum is 56.

The square root of 636298994 is about 25224.9676709406. The cubic root of 636298994 is about 860.1095020113.

The spelling of 636298994 in words is "six hundred thirty-six million, two hundred ninety-eight thousand, nine hundred ninety-four".