634889299 has 6 divisors (see below), whose sum is σ = 697853660. Its totient is φ = 577171980.

The previous prime is 634889287. The next prime is 634889303. The reversal of 634889299 is 992988436.

It is not a de Polignac number, because 634889299 - 2¹¹ = 634887251 is a prime.

It is a super-2 number, since 2×634889299² = 806168843969422802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634889699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2623389 + ... + 2623630.

Almost surely, 2^634889299 is an apocalyptic number.

634889299 is a deficient number, since it is larger than the sum of its proper divisors (62964361).

634889299 is a wasteful number, since it uses less digits than its factorization.

634889299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247041 (or 5247030 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 58.

The square root of 634889299 is about 25197.0097233779. The cubic root of 634889299 is about 859.4738529486.

The spelling of 634889299 in words is "six hundred thirty-four million, eight hundred eighty-nine thousand, two hundred ninety-nine".