634334331 has 4 divisors (see below), whose sum is σ = 845779112. Its totient is φ = 422889552.

The previous prime is 634334299. The next prime is 634334333. The reversal of 634334331 is 133433436.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 634334331 - 2⁵ = 634334299 is a prime.

It is a super-2 number, since 2×634334331² = 804760086970435122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634334333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105722386 + ... + 105722391.

It is an arithmetic number, because the mean of its divisors is an integer number (211444778).

Almost surely, 2^634334331 is an apocalyptic number.

634334331 is a deficient number, since it is larger than the sum of its proper divisors (211444781).

634334331 is a wasteful number, since it uses less digits than its factorization.

634334331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211444780.

The product of its digits is 23328, while the sum is 30.

The square root of 634334331 is about 25185.9947391402. The cubic root of 634334331 is about 859.2233528312.

Adding to 634334331 its reverse (133433436), we get a palindrome (767767767).

The spelling of 634334331 in words is "six hundred thirty-four million, three hundred thirty-four thousand, three hundred thirty-one".