2118473 has 8 divisors (see below), whose sum is σ = 2457792. Its totient is φ = 1788336.

The previous prime is 2118449. The next prime is 2118491. The reversal of 2118473 is 3748112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2118473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2118433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790 + ... + 2727.

It is an arithmetic number, because the mean of its divisors is an integer number (307224).

2^2118473 is an apocalyptic number.

It is an amenable number.

2118473 is a deficient number, since it is larger than the sum of its proper divisors (339319).

2118473 is an equidigital number, since it uses as much as digits as its factorization.

2118473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591.

The product of its digits is 1344, while the sum is 26.

The square root of 2118473 is about 1455.4975094448. The cubic root of 2118473 is about 128.4323150840.

The spelling of 2118473 in words is "two million, one hundred eighteen thousand, four hundred seventy-three".