634734 has 24 divisors (see below), whose sum is σ = 1389960. Its totient is φ = 209328.

The previous prime is 634727. The next prime is 634741. The reversal of 634734 is 437436.

It is an interprime number because it is at equal distance from previous prime (634727) and next prime (634741).

It is a junction number, because it is equal to n+sod(n) for n = 634698 and 634707.

It is a congruent number.

It is an unprimeable number.

634734 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3124 + ... + 3320.

It is an arithmetic number, because the mean of its divisors is an integer number (57915).

2⁶³⁴⁷³⁴ is an apocalyptic number.

634734 is an abundant number, since it is smaller than the sum of its proper divisors (755226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634734 is a wasteful number, since it uses less digits than its factorization.

634734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 381 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 634734 is about 796.7019517988. The cubic root of 634734 is about 85.9403769175.

The spelling of 634734 in words is "six hundred thirty-four thousand, seven hundred thirty-four".