10405839 has 4 divisors (see below), whose sum is σ = 13874456. Its totient is φ = 6937224.

The previous prime is 10405799. The next prime is 10405873. The reversal of 10405839 is 93850401.

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

It is not a de Polignac number, because 10405839 - 2⁸ = 10405583 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 (10403839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734304 + ... + 1734309.

It is an arithmetic number, because the mean of its divisors is an integer number (3468614).

Almost surely, 2^10405839 is an apocalyptic number.

10405839 is a deficient number, since it is larger than the sum of its proper divisors (3468617).

10405839 is an equidigital number, since it uses as much as digits as its factorization.

10405839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468616.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 10405839 is about 3225.8082708059. The cubic root of 10405839 is about 218.3194192455.

The spelling of 10405839 in words is "ten million, four hundred five thousand, eight hundred thirty-nine".