1097900 has 18 divisors (see below), whose sum is σ = 2382660. Its totient is φ = 439120.

The previous prime is 1097897. The next prime is 1097903. The reversal of 1097900 is 97901.

It is an interprime number because it is at equal distance from previous prime (1097897) and next prime (1097903).

It is a self number, because there is not a number n which added to its sum of digits gives 1097900.

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 5 ways as a sum of consecutive naturals, for example, 5390 + ... + 5589.

It is an arithmetic number, because the mean of its divisors is an integer number (132370).

2^1097900 is an apocalyptic number.

1097900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1097900 is an abundant number, since it is smaller than the sum of its proper divisors (1284760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1097900 is a wasteful number, since it uses less digits than its factorization.

1097900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10993 (or 10986 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 1097900 is about 1047.8072341800. The cubic root of 1097900 is about 103.1622791454.

Subtracting from 1097900 its reverse (97901), we obtain a palindrome (999999).

The spelling of 1097900 in words is "one million, ninety-seven thousand, nine hundred".