637674 has 8 divisors (see below), whose sum is σ = 1275360. Its totient is φ = 212556.

The previous prime is 637669. The next prime is 637691. The reversal of 637674 is 476736.

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

637674 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53134 + ... + 53145.

It is an arithmetic number, because the mean of its divisors is an integer number (159420).

2⁶³⁷⁶⁷⁴ is an apocalyptic number.

637674 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.

637674 is a wasteful number, since it uses less digits than its factorization.

637674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106284.

The product of its digits is 21168, while the sum is 33.

The square root of 637674 is about 798.5449267261. The cubic root of 637674 is about 86.0728605543.

The spelling of 637674 in words is "six hundred thirty-seven thousand, six hundred seventy-four".