12240787 has 4 divisors (see below), whose sum is σ = 13182400. Its totient is φ = 11299176.

The previous prime is 12240779. The next prime is 12240803. The reversal of 12240787 is 78704221.

12240787 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12240787 - 2³ = 12240779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12240287) 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, 470787 + ... + 470812.

It is an arithmetic number, because the mean of its divisors is an integer number (3295600).

Almost surely, 2^12240787 is an apocalyptic number.

12240787 is a deficient number, since it is larger than the sum of its proper divisors (941613).

12240787 is an equidigital number, since it uses as much as digits as its factorization.

12240787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941612.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 12240787 is about 3498.6836095880. The cubic root of 12240787 is about 230.4640097016.

The spelling of 12240787 in words is "twelve million, two hundred forty thousand, seven hundred eighty-seven".