634253 has 4 divisors (see below), whose sum is σ = 671580. Its totient is φ = 596928.

The previous prime is 634247. The next prime is 634261. The reversal of 634253 is 352436.

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

It can be written as a sum of positive squares in 2 ways, for example, as 405769 + 228484 = 637^2 + 478^2 .

It is a cyclic number.

It is not a de Polignac number, because 634253 - 2⁴ = 634237 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 3¹¹ + 2 + 4² + 5 + 3¹¹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18638 + ... + 18671.

It is an arithmetic number, because the mean of its divisors is an integer number (167895).

2⁶³⁴²⁵³ is an apocalyptic number.

It is an amenable number.

634253 is a deficient number, since it is larger than the sum of its proper divisors (37327).

634253 is a wasteful number, since it uses less digits than its factorization.

634253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37326.

The product of its digits is 2160, while the sum is 23.

The square root of 634253 is about 796.4000251130. The cubic root of 634253 is about 85.9186629567.

Adding to 634253 its reverse (352436), we get a palindrome (986689).

The spelling of 634253 in words is "six hundred thirty-four thousand, two hundred fifty-three".