1679289 has 8 divisors (see below), whose sum is σ = 2256672. Its totient is φ = 1110720.

The previous prime is 1679287. The next prime is 1679291. The reversal of 1679289 is 9829761.

It is an interprime number because it is at equal distance from previous prime (1679287) and next prime (1679291).

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

It is not a de Polignac number, because 1679289 - 2¹ = 1679287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1679289.

It is not an unprimeable number, because it can be changed into a prime (1679281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744 + ... + 2529.

It is an arithmetic number, because the mean of its divisors is an integer number (282084).

2^1679289 is an apocalyptic number.

It is an amenable number.

1679289 is a deficient number, since it is larger than the sum of its proper divisors (577383).

1679289 is a wasteful number, since it uses less digits than its factorization.

1679289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407.

The product of its digits is 54432, while the sum is 42.

The square root of 1679289 is about 1295.8738364517. The cubic root of 1679289 is about 118.8616663377.

The spelling of 1679289 in words is "one million, six hundred seventy-nine thousand, two hundred eighty-nine".