12920027 has 4 divisors (see below), whose sum is σ = 12938160. Its totient is φ = 12901896.

The previous prime is 12920023. The next prime is 12920071. The reversal of 12920027 is 72002921.

12920027 is digitally balanced in base 2, 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 12920027 - 2² = 12920023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12919984 and 12920011.

It is not an unprimeable number, because it can be changed into a prime (12920023) 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, 7952 + ... + 9437.

It is an arithmetic number, because the mean of its divisors is an integer number (3234540).

Almost surely, 2^12920027 is an apocalyptic number.

12920027 is a deficient number, since it is larger than the sum of its proper divisors (18133).

12920027 is an equidigital number, since it uses as much as digits as its factorization.

12920027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18132.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 12920027 is about 3594.4439069208. The cubic root of 12920027 is about 234.6503143826.

Adding to 12920027 its reverse (72002921), we get a palindrome (84922948).

The spelling of 12920027 in words is "twelve million, nine hundred twenty thousand, twenty-seven".