634323243 has 8 divisors (see below), whose sum is σ = 845999248. Its totient is φ = 422764704.

The previous prime is 634323241. The next prime is 634323269. The reversal of 634323243 is 342323436.

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

It is not a de Polignac number, because 634323243 - 2¹ = 634323241 is a prime.

It is a super-2 number, since 2×634323243² = 804731953220074098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 634323243.

It is not an unprimeable number, because it can be changed into a prime (634323241) 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, 15880 + ... + 38997.

It is an arithmetic number, because the mean of its divisors is an integer number (105749906).

Almost surely, 2^634323243 is an apocalyptic number.

634323243 is a deficient number, since it is larger than the sum of its proper divisors (211676005).

634323243 is a wasteful number, since it uses less digits than its factorization.

634323243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58733.

The product of its digits is 31104, while the sum is 30.

The square root of 634323243 is about 25185.7746158422. The cubic root of 634323243 is about 859.2183464681.

Adding to 634323243 its reverse (342323436), we get a palindrome (976646679).

The spelling of 634323243 in words is "six hundred thirty-four million, three hundred twenty-three thousand, two hundred forty-three".