1097905 has 8 divisors (see below), whose sum is σ = 1374912. Its totient is φ = 840048.

The previous prime is 1097903. The next prime is 1097909. The reversal of 1097905 is 5097901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1097905 - 2¹ = 1097903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097903) 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 in 7 ways as a sum of consecutive naturals, for example, 4659 + ... + 4888.

It is an arithmetic number, because the mean of its divisors is an integer number (171864).

2^1097905 is an apocalyptic number.

It is an amenable number.

1097905 is a deficient number, since it is larger than the sum of its proper divisors (277007).

1097905 is an equidigital number, since it uses as much as digits as its factorization.

1097905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9575.

The product of its (nonzero) digits is 2835, while the sum is 31.

The square root of 1097905 is about 1047.8096201124. The cubic root of 1097905 is about 103.1624357506.

It can be divided in two parts, 1097 and 905, that added together give a palindrome (2002).

The spelling of 1097905 in words is "one million, ninety-seven thousand, nine hundred five".