4173845 has 16 divisors (see below), whose sum is σ = 5441520. Its totient is φ = 3055104.

The previous prime is 4173817. The next prime is 4173847. The reversal of 4173845 is 5483714.

It can be written as a sum of positive squares in 8 ways, for example, as 69169 + 4104676 = 263^2 + 2026^2 .

It is not a de Polignac number, because 4173845 - 2¹⁶ = 4108309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4173847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10001 + ... + 10409.

It is an arithmetic number, because the mean of its divisors is an integer number (340095).

Almost surely, 2^4173845 is an apocalyptic number.

It is an amenable number.

4173845 is a deficient number, since it is larger than the sum of its proper divisors (1267675).

4173845 is a wasteful number, since it uses less digits than its factorization.

4173845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584.

The product of its digits is 13440, while the sum is 32.

The square root of 4173845 is about 2042.9990210472. Note that the first 3 decimals coincide. The cubic root of 4173845 is about 161.0072524799.

The spelling of 4173845 in words is "four million, one hundred seventy-three thousand, eight hundred forty-five".