1818873 has 12 divisors (see below), whose sum is σ = 3002688. Its totient is φ = 1039320.

The previous prime is 1818871. The next prime is 1818919. The reversal of 1818873 is 3788181.

1818873 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 1818873 - 2¹ = 1818871 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1818871) 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, 14373 + ... + 14498.

It is an arithmetic number, because the mean of its divisors is an integer number (250224).

2^1818873 is an apocalyptic number.

It is an amenable number.

1818873 is a deficient number, since it is larger than the sum of its proper divisors (1183815).

1818873 is a wasteful number, since it uses less digits than its factorization.

1818873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28884 (or 28881 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 1818873 is about 1348.6559976510. The cubic root of 1818873 is about 122.0677085412.

The spelling of 1818873 in words is "one million, eight hundred eighteen thousand, eight hundred seventy-three".