1109393 has 2 divisors, whose sum is σ = 1109394. Its totient is φ = 1109392.

The previous prime is 1109387. The next prime is 1109399. The reversal of 1109393 is 3939011.

It is a balanced prime because it is at equal distance from previous prime (1109387) and next prime (1109399).

It can be written as a sum of positive squares in only one way, i.e., 786769 + 322624 = 887^2 + 568^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109393 - 2¹⁰ = 1108369 is a prime.

It is an Ulam number.

It is equal to p₈₆₄₀₈ and since 1109393 and 86408 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1109399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554696 + 554697.

It is an arithmetic number, because the mean of its divisors is an integer number (554697).

2^1109393 is an apocalyptic number.

It is an amenable number.

1109393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109393 is an equidigital number, since it uses as much as digits as its factorization.

1109393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 1109393 is about 1053.2772664403. The cubic root of 1109393 is about 103.5210036178.

The spelling of 1109393 in words is "one million, one hundred nine thousand, three hundred ninety-three".