637434 has 24 divisors (see below), whose sum is σ = 1578720. Its totient is φ = 182088.

The previous prime is 637423. The next prime is 637447. The reversal of 637434 is 434736.

It is a junction number, because it is equal to n+sod(n) for n = 637398 and 637407.

It is an unprimeable 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, 2404 + ... + 2655.

It is an arithmetic number, because the mean of its divisors is an integer number (65780).

2⁶³⁷⁴³⁴ is an apocalyptic number.

637434 is an abundant number, since it is smaller than the sum of its proper divisors (941286).

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

637434 is a wasteful number, since it uses less digits than its factorization.

637434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074 (or 5071 counting only the distinct ones).

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

The square root of 637434 is about 798.3946392606. The cubic root of 637434 is about 86.0620608465.

The spelling of 637434 in words is "six hundred thirty-seven thousand, four hundred thirty-four".