1299827 has 2 divisors, whose sum is σ = 1299828. Its totient is φ = 1299826.

The previous prime is 1299821. The next prime is 1299833. The reversal of 1299827 is 7289921.

It is a balanced prime because it is at equal distance from previous prime (1299821) and next prime (1299833).

It is an emirp because it is prime and its reverse (7289921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1299827 - 2⁴ = 1299811 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1299821) 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 as a sum of consecutive naturals, namely, 649913 + 649914.

It is an arithmetic number, because the mean of its divisors is an integer number (649914).

2^1299827 is an apocalyptic number.

1299827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299827 is an equidigital number, since it uses as much as digits as its factorization.

1299827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 38.

The square root of 1299827 is about 1140.0995570563. The cubic root of 1299827 is about 109.1344467844.

The spelling of 1299827 in words is "one million, two hundred ninety-nine thousand, eight hundred twenty-seven".