1099393 has 2 divisors, whose sum is σ = 1099394. Its totient is φ = 1099392.

The previous prime is 1099391. The next prime is 1099409. The reversal of 1099393 is 3939901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1098304 + 1089 = 1048^2 + 33^2 .

It is a cyclic number.

It is not a de Polignac number, because 1099393 - 2¹ = 1099391 is a prime.

Together with 1099391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1099391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549696 + 549697.

It is an arithmetic number, because the mean of its divisors is an integer number (549697).

2^1099393 is an apocalyptic number.

It is an amenable number.

1099393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099393 is an equidigital number, since it uses as much as digits as its factorization.

1099393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 1099393 is about 1048.5194323426. The cubic root of 1099393 is about 103.2090203541.

The spelling of 1099393 in words is "one million, ninety-nine thousand, three hundred ninety-three".