6924389 has 4 divisors (see below), whose sum is σ = 7331724. Its totient is φ = 6517056.

The previous prime is 6924349. The next prime is 6924409. The reversal of 6924389 is 9834296.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4068289 + 2856100 = 2017^2 + 1690^2 .

It is a cyclic number.

It is not a de Polignac number, because 6924389 - 2¹² = 6920293 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 (6924319) 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, 203642 + ... + 203675.

It is an arithmetic number, because the mean of its divisors is an integer number (1832931).

Almost surely, 2^6924389 is an apocalyptic number.

It is an amenable number.

6924389 is a deficient number, since it is larger than the sum of its proper divisors (407335).

6924389 is a wasteful number, since it uses less digits than its factorization.

6924389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407334.

The product of its digits is 93312, while the sum is 41.

The square root of 6924389 is about 2631.4233790859. The cubic root of 6924389 is about 190.6018679805.

The spelling of 6924389 in words is "six million, nine hundred twenty-four thousand, three hundred eighty-nine".