1100393 has 12 divisors (see below), whose sum is σ = 1356372. Its totient is φ = 887040.

The previous prime is 1100387. The next prime is 1100419. The reversal of 1100393 is 3930011.

It can be written as a sum of positive squares in 2 ways, for example, as 946729 + 153664 = 973^2 + 392^2 .

It is not a de Polignac number, because 1100393 - 2⁴ = 1100377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173 + ... + 1493.

It is an arithmetic number, because the mean of its divisors is an integer number (113031).

2^1100393 is an apocalyptic number.

It is an amenable number.

1100393 is a deficient number, since it is larger than the sum of its proper divisors (255979).

1100393 is a wasteful number, since it uses less digits than its factorization.

1100393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1100393 is about 1048.9961868377. The cubic root of 1100393 is about 103.2403035996.

The spelling of 1100393 in words is "one million, one hundred thousand, three hundred ninety-three".