1674609 has 4 divisors (see below), whose sum is σ = 2232816. Its totient is φ = 1116404.

The previous prime is 1674601. The next prime is 1674613. The reversal of 1674609 is 9064761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9064761 = 3 ⋅3021587.

It is a cyclic number.

It is not a de Polignac number, because 1674609 - 2³ = 1674601 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1674609.

It is not an unprimeable number, because it can be changed into a prime (1674601) 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 3 ways as a sum of consecutive naturals, for example, 279099 + ... + 279104.

It is an arithmetic number, because the mean of its divisors is an integer number (558204).

2^1674609 is an apocalyptic number.

It is an amenable number.

1674609 is a deficient number, since it is larger than the sum of its proper divisors (558207).

1674609 is an equidigital number, since it uses as much as digits as its factorization.

1674609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558206.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1674609 is about 1294.0668452595. The cubic root of 1674609 is about 118.7511453260.

The spelling of 1674609 in words is "one million, six hundred seventy-four thousand, six hundred nine".