1242827 has 2 divisors, whose sum is σ = 1242828. Its totient is φ = 1242826.

The previous prime is 1242823. The next prime is 1242841. The reversal of 1242827 is 7282421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1242827 - 2² = 1242823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1242796 and 1242805.

It is not a weakly prime, because it can be changed into another prime (1242823) 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, 621413 + 621414.

It is an arithmetic number, because the mean of its divisors is an integer number (621414).

2^1242827 is an apocalyptic number.

1242827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242827 is an equidigital number, since it uses as much as digits as its factorization.

1242827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 26.

The square root of 1242827 is about 1114.8215103773. The cubic root of 1242827 is about 107.5152889738.

The spelling of 1242827 in words is "one million, two hundred forty-two thousand, eight hundred twenty-seven".