2421173 has 4 divisors (see below), whose sum is σ = 2480268. Its totient is φ = 2362080.

The previous prime is 2421163. The next prime is 2421203. The reversal of 2421173 is 3711242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3711242 = 2 ⋅1855621.

It can be written as a sum of positive squares in 2 ways, for example, as 1456849 + 964324 = 1207^2 + 982^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421173 - 2⁶ = 2421109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421163) 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, 29486 + ... + 29567.

It is an arithmetic number, because the mean of its divisors is an integer number (620067).

2^2421173 is an apocalyptic number.

It is an amenable number.

2421173 is a deficient number, since it is larger than the sum of its proper divisors (59095).

2421173 is an equidigital number, since it uses as much as digits as its factorization.

2421173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59094.

The product of its digits is 336, while the sum is 20.

The square root of 2421173 is about 1556.0118894147. The cubic root of 2421173 is about 134.2791574004.

The spelling of 2421173 in words is "two million, four hundred twenty-one thousand, one hundred seventy-three".