12307427 has 4 divisors (see below), whose sum is σ = 13426296. Its totient is φ = 11188560.

The previous prime is 12307423. The next prime is 12307429. The reversal of 12307427 is 72470321.

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 12307427 - 2² = 12307423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12307396 and 12307405.

It is not an unprimeable number, because it can be changed into a prime (12307423) 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, 559418 + ... + 559439.

It is an arithmetic number, because the mean of its divisors is an integer number (3356574).

Almost surely, 2^12307427 is an apocalyptic number.

12307427 is a deficient number, since it is larger than the sum of its proper divisors (1118869).

12307427 is a wasteful number, since it uses less digits than its factorization.

12307427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118868.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 12307427 is about 3508.1942648605. The cubic root of 12307427 is about 230.8814756494.

Adding to 12307427 its reverse (72470321), we get a palindrome (84777748).

The spelling of 12307427 in words is "twelve million, three hundred seven thousand, four hundred twenty-seven".