637104 has 40 divisors (see below), whose sum is σ = 1774192. Its totient is φ = 195840.

The previous prime is 637097. The next prime is 637129. The reversal of 637104 is 401736.

It is an unprimeable number.

637104 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114 + ... + 1134.

2⁶³⁷¹⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 637104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887096).

637104 is an abundant number, since it is smaller than the sum of its proper divisors (1137088).

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

637104 is a wasteful number, since it uses less digits than its factorization.

637104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 637104 is about 798.1879477917. The cubic root of 637104 is about 86.0472068211.

It can be divided in two parts, 637 and 104, that added together give a triangular number (741 = T₃₈).

The spelling of 637104 in words is "six hundred thirty-seven thousand, one hundred four".