1389829 has 8 divisors (see below), whose sum is σ = 1595648. Its totient is φ = 1185840.

The previous prime is 1389811. The next prime is 1389833. The reversal of 1389829 is 9289831.

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

It is a cyclic number.

It is not a de Polignac number, because 1389829 - 2⁵ = 1389797 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1389791 and 1389800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389809) 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, 2299 + ... + 2839.

It is an arithmetic number, because the mean of its divisors is an integer number (199456).

2^1389829 is an apocalyptic number.

It is an amenable number.

1389829 is a deficient number, since it is larger than the sum of its proper divisors (205819).

1389829 is an equidigital number, since it uses as much as digits as its factorization.

1389829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915.

The product of its digits is 31104, while the sum is 40.

The square root of 1389829 is about 1178.9100898711. The cubic root of 1389829 is about 111.5973263235.

The spelling of 1389829 in words is "one million, three hundred eighty-nine thousand, eight hundred twenty-nine".