12423805 has 8 divisors (see below), whose sum is σ = 14985432. Its totient is φ = 9887808.

The previous prime is 12423799. The next prime is 12423811. The reversal of 12423805 is 50832421.

It is an interprime number because it is at equal distance from previous prime (12423799) and next prime (12423811).

It can be written as a sum of positive squares in 4 ways, for example, as 4008004 + 8415801 = 2002^2 + 2901^2 .

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 12423805 - 2¹¹ = 12421757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12423805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5322 + ... + 7291.

It is an arithmetic number, because the mean of its divisors is an integer number (1873179).

Almost surely, 2^12423805 is an apocalyptic number.

It is an amenable number.

12423805 is a deficient number, since it is larger than the sum of its proper divisors (2561627).

12423805 is a wasteful number, since it uses less digits than its factorization.

12423805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12815.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 12423805 is about 3524.7418345178. The cubic root of 12423805 is about 231.6069258053.

The spelling of 12423805 in words is "twelve million, four hundred twenty-three thousand, eight hundred five".