634329453 has 4 divisors (see below), whose sum is σ = 845772608. Its totient is φ = 422886300.

The previous prime is 634329439. The next prime is 634329461. The reversal of 634329453 is 354923436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 634329453 - 2⁸ = 634329197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634329403) 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, 105721573 + ... + 105721578.

It is an arithmetic number, because the mean of its divisors is an integer number (211443152).

Almost surely, 2^634329453 is an apocalyptic number.

It is an amenable number.

634329453 is a deficient number, since it is larger than the sum of its proper divisors (211443155).

634329453 is a wasteful number, since it uses less digits than its factorization.

634329453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211443154.

The product of its digits is 233280, while the sum is 39.

The square root of 634329453 is about 25185.8978994198. The cubic root of 634329453 is about 859.2211503637.

The spelling of 634329453 in words is "six hundred thirty-four million, three hundred twenty-nine thousand, four hundred fifty-three".