1109673 has 16 divisors (see below), whose sum is σ = 1669440. Its totient is φ = 728352.

The previous prime is 1109663. The next prime is 1109723. The reversal of 1109673 is 3769011.

It is not a de Polignac number, because 1109673 - 2⁶ = 1109609 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1109653) 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 in 15 ways as a sum of consecutive naturals, for example, 1690 + ... + 2252.

It is an arithmetic number, because the mean of its divisors is an integer number (104340).

2^1109673 is an apocalyptic number.

It is an amenable number.

1109673 is a deficient number, since it is larger than the sum of its proper divisors (559767).

1109673 is an equidigital number, since it uses as much as digits as its factorization.

1109673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1109673 is about 1053.4101765219. The cubic root of 1109673 is about 103.5297121165.

The spelling of 1109673 in words is "one million, one hundred nine thousand, six hundred seventy-three".