4173997 has 4 divisors (see below), whose sum is σ = 4179420. Its totient is φ = 4168576.

The previous prime is 4173989. The next prime is 4174013. The reversal of 4173997 is 7993714.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7993714 = 2 ⋅3996857.

It can be written as a sum of positive squares in 2 ways, for example, as 2253001 + 1920996 = 1501^2 + 1386^2 .

It is a cyclic number.

It is not a de Polignac number, because 4173997 - 2³ = 4173989 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4173907) 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, 1318 + ... + 3175.

It is an arithmetic number, because the mean of its divisors is an integer number (1044855).

Almost surely, 2^4173997 is an apocalyptic number.

It is an amenable number.

4173997 is a deficient number, since it is larger than the sum of its proper divisors (5423).

4173997 is an equidigital number, since it uses as much as digits as its factorization.

4173997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5422.

The product of its digits is 47628, while the sum is 40.

The square root of 4173997 is about 2043.0362209222. The cubic root of 4173997 is about 161.0092069372.

The spelling of 4173997 in words is "four million, one hundred seventy-three thousand, nine hundred ninety-seven".