674437 has 4 divisors (see below), whose sum is σ = 677376. Its totient is φ = 671500.

The previous prime is 674431. The next prime is 674449. The reversal of 674437 is 734476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674437 is a prime.

It is a super-3 number, since 3×674437³ = 920333898176314359, which contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

674437 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 674399 and 674408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674431) 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, 1093 + ... + 1594.

It is an arithmetic number, because the mean of its divisors is an integer number (169344).

2⁶⁷⁴⁴³⁷ is an apocalyptic number.

It is an amenable number.

674437 is a deficient number, since it is larger than the sum of its proper divisors (2939).

674437 is a wasteful number, since it uses less digits than its factorization.

674437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938.

The product of its digits is 14112, while the sum is 31.

The square root of 674437 is about 821.2411338943. The cubic root of 674437 is about 87.6961368888.

It can be divided in two parts, 674 and 437, that added together give a palindrome (1111).

The spelling of 674437 in words is "six hundred seventy-four thousand, four hundred thirty-seven".