434187 has 16 divisors (see below), whose sum is σ = 693280. Its totient is φ = 266976.

The previous prime is 434179. The next prime is 434191. The reversal of 434187 is 781434.

It is not a de Polignac number, because 434187 - 2³ = 434179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a Duffinian number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 434187.

It is not an unprimeable number, because it can be changed into a prime (434107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268 + ... + 969.

It is an arithmetic number, because the mean of its divisors is an integer number (43330).

2⁴³⁴¹⁸⁷ is an apocalyptic number.

434187 is a deficient number, since it is larger than the sum of its proper divisors (259093).

434187 is a wasteful number, since it uses less digits than its factorization.

434187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259 (or 1253 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 434187 is about 658.9286759582. The cubic root of 434187 is about 75.7226153341.

It can be divided in two parts, 4 and 34187, that added together give a triangular number (34191 = T₂₆₁).

The spelling of 434187 in words is "four hundred thirty-four thousand, one hundred eighty-seven".