1248799 has 2 divisors, whose sum is σ = 1248800. Its totient is φ = 1248798.

The previous prime is 1248781. The next prime is 1248809. The reversal of 1248799 is 9978421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1248799 - 2⁷ = 1248671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1248199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624399 + 624400.

It is an arithmetic number, because the mean of its divisors is an integer number (624400).

2^1248799 is an apocalyptic number.

1248799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248799 is an equidigital number, since it uses as much as digits as its factorization.

1248799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 1248799 is about 1117.4967561474. The cubic root of 1248799 is about 107.6872237658.

The spelling of 1248799 in words is "one million, two hundred forty-eight thousand, seven hundred ninety-nine".