874647 has 12 divisors (see below), whose sum is σ = 1273480. Its totient is φ = 578448.

The previous prime is 874639. The next prime is 874651. The reversal of 874647 is 746478.

It is a happy number.

874647 is a `hidden beast` number, since 8 + 7 + 4 + 647 = 666.

It is not a de Polignac number, because 874647 - 2³ = 874639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1104 + ... + 1722.

2⁸⁷⁴⁶⁴⁷ is an apocalyptic number.

874647 is a deficient number, since it is larger than the sum of its proper divisors (398833).

874647 is a wasteful number, since it uses less digits than its factorization.

874647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 779 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 874647 is about 935.2256412225. The cubic root of 874647 is about 95.6336952237.

It can be divided in two parts, 874 and 647, that added together give a square (1521 = 39²).

The spelling of 874647 in words is "eight hundred seventy-four thousand, six hundred forty-seven".