2149673 has 4 divisors (see below), whose sum is σ = 2152788. Its totient is φ = 2146560.

The previous prime is 2149661. The next prime is 2149681. The reversal of 2149673 is 3769412.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1567504 + 582169 = 1252^2 + 763^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149673 - 2¹⁰ = 2148649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2149573) 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, 8 + ... + 2073.

It is an arithmetic number, because the mean of its divisors is an integer number (538197).

2^2149673 is an apocalyptic number.

It is an amenable number.

2149673 is a deficient number, since it is larger than the sum of its proper divisors (3115).

2149673 is a wasteful number, since it uses less digits than its factorization.

2149673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114.

The product of its digits is 9072, while the sum is 32.

The square root of 2149673 is about 1466.1763195469. The cubic root of 2149673 is about 129.0597443750.

It can be divided in two parts, 21 and 49673, that added together give a palindrome (49694).

The spelling of 2149673 in words is "two million, one hundred forty-nine thousand, six hundred seventy-three".