674887 has 4 divisors (see below), whose sum is σ = 682560. Its totient is φ = 667216.

The previous prime is 674879. The next prime is 674903. The reversal of 674887 is 788476.

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 674887 - 2³ = 674879 is a prime.

It is a Smith number, since the sum of its digits (40) 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.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674827) 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, 3703 + ... + 3880.

It is an arithmetic number, because the mean of its divisors is an integer number (170640).

2⁶⁷⁴⁸⁸⁷ is an apocalyptic number.

674887 is a deficient number, since it is larger than the sum of its proper divisors (7673).

674887 is an equidigital number, since it uses as much as digits as its factorization.

674887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7672.

The product of its digits is 75264, while the sum is 40.

The square root of 674887 is about 821.5150637694. The cubic root of 674887 is about 87.7156368509.

The spelling of 674887 in words is "six hundred seventy-four thousand, eight hundred eighty-seven".