2097800 has 48 divisors (see below), whose sum is σ = 5172660. Its totient is φ = 788480.

The previous prime is 2097787. The next prime is 2097803. The reversal of 2097800 is 87902.

It can be written as a sum of positive squares in 6 ways, for example, as 454276 + 1643524 = 674^2 + 1282^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2097800.

It is not an unprimeable number, because it can be changed into a prime (2097803) 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, 3092 + ... + 3708.

2^2097800 is an apocalyptic number.

2097800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2097800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2586330).

2097800 is an abundant number, since it is smaller than the sum of its proper divisors (3074860).

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

2097800 is a wasteful number, since it uses less digits than its factorization.

2097800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2097800 is about 1448.3784035949. The cubic root of 2097800 is about 128.0131822361.

The spelling of 2097800 in words is "two million, ninety-seven thousand, eight hundred".