634474 has 8 divisors (see below), whose sum is σ = 1007748. Its totient is φ = 298560.

The previous prime is 634471. The next prime is 634483. The reversal of 634474 is 474436.

It can be written as a sum of positive squares in 2 ways, for example, as 628849 + 5625 = 793^2 + 75^2 .

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

It is not an unprimeable number, because it can be changed into a prime (634471) 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, 9297 + ... + 9364.

2⁶³⁴⁴⁷⁴ is an apocalyptic number.

634474 is a deficient number, since it is larger than the sum of its proper divisors (373274).

634474 is a wasteful number, since it uses less digits than its factorization.

634474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18680.

The product of its digits is 8064, while the sum is 28.

The square root of 634474 is about 796.5387623964. The cubic root of 634474 is about 85.9286410041.

The spelling of 634474 in words is "six hundred thirty-four thousand, four hundred seventy-four".