674187 has 4 divisors (see below), whose sum is σ = 898920. Its totient is φ = 449456.

The previous prime is 674183. The next prime is 674189. The reversal of 674187 is 781476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 674187 - 2² = 674183 is a prime.

It is a super-2 number, since 2×674187² = 909056221938, which contains 22 as substring.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (674183) 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, 112362 + ... + 112367.

It is an arithmetic number, because the mean of its divisors is an integer number (224730).

2⁶⁷⁴¹⁸⁷ is an apocalyptic number.

674187 is a deficient number, since it is larger than the sum of its proper divisors (224733).

674187 is a wasteful number, since it uses less digits than its factorization.

674187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224732.

The product of its digits is 9408, while the sum is 33.

The square root of 674187 is about 821.0889111418. The cubic root of 674187 is about 87.6852998283.

It can be divided in two parts, 674 and 187, that added together give a triangular number (861 = T₄₁).

The spelling of 674187 in words is "six hundred seventy-four thousand, one hundred eighty-seven".