1429789 has 4 divisors (see below), whose sum is σ = 1442556. Its totient is φ = 1417024.

The previous prime is 1429783. The next prime is 1429801. The reversal of 1429789 is 9879241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9879241 = 83 ⋅119027.

It can be written as a sum of positive squares in 2 ways, for example, as 13689 + 1416100 = 117^2 + 1190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1429789 - 2⁷ = 1429661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429783) 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, 6214 + ... + 6439.

It is an arithmetic number, because the mean of its divisors is an integer number (360639).

2^1429789 is an apocalyptic number.

It is an amenable number.

1429789 is a deficient number, since it is larger than the sum of its proper divisors (12767).

1429789 is a wasteful number, since it uses less digits than its factorization.

1429789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12766.

The product of its digits is 36288, while the sum is 40.

The square root of 1429789 is about 1195.7378475234. The cubic root of 1429789 is about 112.6567756607.

The spelling of 1429789 in words is "one million, four hundred twenty-nine thousand, seven hundred eighty-nine".