634091236 has 12 divisors (see below), whose sum is σ = 1145455360. Its totient is φ = 306818280.

The previous prime is 634091233. The next prime is 634091239. The reversal of 634091236 is 632190436.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (634091233) and next prime (634091239).

It is a hoax number, since the sum of its digits (34) 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 (634091233) 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, 2556696 + ... + 2556943.

Almost surely, 2^634091236 is an apocalyptic number.

It is an amenable number.

634091236 is a deficient number, since it is larger than the sum of its proper divisors (511364124).

634091236 is a wasteful number, since it uses less digits than its factorization.

634091236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5113674 (or 5113672 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 634091236 is about 25181.1682810786. The cubic root of 634091236 is about 859.1135791790.

The spelling of 634091236 in words is "six hundred thirty-four million, ninety-one thousand, two hundred thirty-six".