634317 has 16 divisors (see below), whose sum is σ = 915840. Its totient is φ = 389312.

The previous prime is 634313. The next prime is 634327. The reversal of 634317 is 713436.

It is a cyclic number.

It is not a de Polignac number, because 634317 - 2² = 634313 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 634317.

It is not an unprimeable number, because it can be changed into a prime (634313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1843 + ... + 2159.

It is an arithmetic number, because the mean of its divisors is an integer number (57240).

2⁶³⁴³¹⁷ is an apocalyptic number.

It is an amenable number.

634317 is a deficient number, since it is larger than the sum of its proper divisors (281523).

634317 is a wasteful number, since it uses less digits than its factorization.

634317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372.

The product of its digits is 1512, while the sum is 24.

The square root of 634317 is about 796.4402049118. The cubic root of 634317 is about 85.9215527654.

The spelling of 634317 in words is "six hundred thirty-four thousand, three hundred seventeen".