1800897 has 12 divisors (see below), whose sum is σ = 2793456. Its totient is φ = 1029000.

The previous prime is 1800889. The next prime is 1800907. The reversal of 1800897 is 7980081.

It is not a de Polignac number, because 1800897 - 2³ = 1800889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1800397) 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, 5979 + ... + 6272.

It is an arithmetic number, because the mean of its divisors is an integer number (232788).

2^1800897 is an apocalyptic number.

It is an amenable number.

1800897 is a deficient number, since it is larger than the sum of its proper divisors (992559).

1800897 is a wasteful number, since it uses less digits than its factorization.

1800897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12268 (or 12261 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 1800897 is about 1341.9750370257. The cubic root of 1800897 is about 121.6642429825.

The spelling of 1800897 in words is "one million, eight hundred thousand, eight hundred ninety-seven".