634974 has 8 divisors (see below), whose sum is σ = 1269960. Its totient is φ = 211656.

The previous prime is 634969. The next prime is 634979. The reversal of 634974 is 479436.

634974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (634969) and next prime (634979).

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

634974 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52909 + ... + 52920.

It is an arithmetic number, because the mean of its divisors is an integer number (158745).

2⁶³⁴⁹⁷⁴ is an apocalyptic number.

634974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

634974 is a wasteful number, since it uses less digits than its factorization.

634974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105834.

The product of its digits is 18144, while the sum is 33.

The square root of 634974 is about 796.8525585075. The cubic root of 634974 is about 85.9512072240.

It can be divided in two parts, 6 and 34974, that added together give a triangular number (34980 = T₂₆₄).

The spelling of 634974 in words is "six hundred thirty-four thousand, nine hundred seventy-four".