2154673 has 4 divisors (see below), whose sum is σ = 2207268. Its totient is φ = 2102080.

The previous prime is 2154667. The next prime is 2154683. The reversal of 2154673 is 3764512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1014049 + 1140624 = 1007^2 + 1068^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154673 - 2⁵ = 2154641 is a prime.

It is a super-3 number, since 3×2154673³ = 30009956333208057651, which contains 333 as substring.

It is a Duffinian number.

2154673 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2154643) 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, 26236 + ... + 26317.

It is an arithmetic number, because the mean of its divisors is an integer number (551817).

2^2154673 is an apocalyptic number.

It is an amenable number.

2154673 is a deficient number, since it is larger than the sum of its proper divisors (52595).

2154673 is an equidigital number, since it uses as much as digits as its factorization.

2154673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52594.

The product of its digits is 5040, while the sum is 28.

The square root of 2154673 is about 1467.8804447229. The cubic root of 2154673 is about 129.1597284283.

The spelling of 2154673 in words is "two million, one hundred fifty-four thousand, six hundred seventy-three".