1679089 has 4 divisors (see below), whose sum is σ = 1684800. Its totient is φ = 1673380.

The previous prime is 1679077. The next prime is 1679099. The reversal of 1679089 is 9809761.

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: 9809761 = 13 ⋅754597.

It is a cyclic number.

It is not a de Polignac number, because 1679089 - 2⁵ = 1679057 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (1679009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2389 + ... + 3010.

It is an arithmetic number, because the mean of its divisors is an integer number (421200).

2^1679089 is an apocalyptic number.

It is an amenable number.

1679089 is a deficient number, since it is larger than the sum of its proper divisors (5711).

1679089 is an equidigital number, since it uses as much as digits as its factorization.

1679089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5710.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1679089 is about 1295.7966661479. The cubic root of 1679089 is about 118.8569474205.

The spelling of 1679089 in words is "one million, six hundred seventy-nine thousand, eighty-nine".