1804097 has 4 divisors (see below), whose sum is σ = 1882560. Its totient is φ = 1725636.

The previous prime is 1804093. The next prime is 1804129. The reversal of 1804097 is 7904081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7904081 = 199 ⋅39719.

It is a cyclic number.

It is not a de Polignac number, because 1804097 - 2² = 1804093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1804093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39197 + ... + 39242.

It is an arithmetic number, because the mean of its divisors is an integer number (470640).

2^1804097 is an apocalyptic number.

It is an amenable number.

1804097 is a deficient number, since it is larger than the sum of its proper divisors (78463).

1804097 is an equidigital number, since it uses as much as digits as its factorization.

1804097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78462.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1804097 is about 1343.1667804111. The cubic root of 1804097 is about 121.7362617614.

Subtracting from 1804097 its product of nonzero digits (2016), we obtain a palindrome (1802081).

The spelling of 1804097 in words is "one million, eight hundred four thousand, ninety-seven".