674890 has 8 divisors (see below), whose sum is σ = 1214820. Its totient is φ = 269952.

The previous prime is 674879. The next prime is 674903. The reversal of 674890 is 98476.

674890 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 2 ways, for example, as 564001 + 110889 = 751^2 + 333^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

674890 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33735 + ... + 33754.

2⁶⁷⁴⁸⁹⁰ is an apocalyptic number.

674890 is a deficient number, since it is larger than the sum of its proper divisors (539930).

674890 is a wasteful number, since it uses less digits than its factorization.

674890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67496.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 674890 is about 821.5168896620. The cubic root of 674890 is about 87.7157668216.

The spelling of 674890 in words is "six hundred seventy-four thousand, eight hundred ninety".