12277427 has 2 divisors, whose sum is σ = 12277428. Its totient is φ = 12277426.

The previous prime is 12277399. The next prime is 12277483. The reversal of 12277427 is 72477221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (72477221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12277427 - 2¹⁴ = 12261043 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12277393 and 12277402.

It is not a weakly prime, because it can be changed into another prime (12277127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6138713 + 6138714.

It is an arithmetic number, because the mean of its divisors is an integer number (6138714).

Almost surely, 2^12277427 is an apocalyptic number.

12277427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12277427 is an equidigital number, since it uses as much as digits as its factorization.

12277427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10976, while the sum is 32.

The square root of 12277427 is about 3503.9159521884. The cubic root of 12277427 is about 230.6937277754.

Adding to 12277427 its product of digits (10976), we get a triangular number (12288403 = T₄₉₅₇).

The spelling of 12277427 in words is "twelve million, two hundred seventy-seven thousand, four hundred twenty-seven".