634633429 has 8 divisors (see below), whose sum is σ = 644086080. Its totient is φ = 625195200.

The previous prime is 634633423. The next prime is 634633453. The reversal of 634633429 is 924336436.

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

It is a cyclic number.

It is not a de Polignac number, because 634633429 - 2¹⁹ = 634109141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634633391 and 634633400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634633423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112189 + ... + 117709.

It is an arithmetic number, because the mean of its divisors is an integer number (80510760).

Almost surely, 2^634633429 is an apocalyptic number.

It is an amenable number.

634633429 is a deficient number, since it is larger than the sum of its proper divisors (9452651).

634633429 is a wasteful number, since it uses less digits than its factorization.

634633429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7211.

The product of its digits is 279936, while the sum is 40.

The square root of 634633429 is about 25191.9318235025. The cubic root of 634633429 is about 859.3583771092.

The spelling of 634633429 in words is "six hundred thirty-four million, six hundred thirty-three thousand, four hundred twenty-nine".