8340929 has 4 divisors (see below), whose sum is σ = 8347476. Its totient is φ = 8334384.

The previous prime is 8340911. The next prime is 8340961. The reversal of 8340929 is 9290438.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5017600 + 3323329 = 2240^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 8340929 - 2²⁰ = 7292353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8340989) 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, 674 + ... + 4139.

It is an arithmetic number, because the mean of its divisors is an integer number (2086869).

Almost surely, 2^8340929 is an apocalyptic number.

It is an amenable number.

8340929 is a deficient number, since it is larger than the sum of its proper divisors (6547).

8340929 is a wasteful number, since it uses less digits than its factorization.

8340929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6546.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 8340929 is about 2888.0666543555. The cubic root of 8340929 is about 202.8016456521.

It can be divided in two parts, 83409 and 29, that added together give a palindrome (83438).

The spelling of 8340929 in words is "eight million, three hundred forty thousand, nine hundred twenty-nine".