12390835 has 8 divisors (see below), whose sum is σ = 14889600. Its totient is φ = 9898944.

The previous prime is 12390823. The next prime is 12390839. The reversal of 12390835 is 53809321.

It is a happy number.

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 12390835 - 2⁵ = 12390803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12390797 and 12390806.

It is not an unprimeable number, because it can be changed into a prime (12390839) 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 7 ways as a sum of consecutive naturals, for example, 3966 + ... + 6364.

It is an arithmetic number, because the mean of its divisors is an integer number (1861200).

Almost surely, 2^12390835 is an apocalyptic number.

12390835 is a deficient number, since it is larger than the sum of its proper divisors (2498765).

12390835 is a wasteful number, since it uses less digits than its factorization.

12390835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 12390835 is about 3520.0617892304. The cubic root of 12390835 is about 231.4018666430.

It can be divided in two parts, 12390 and 835, that added together give a square (13225 = 115²).

The spelling of 12390835 in words is "twelve million, three hundred ninety thousand, eight hundred thirty-five".