4168397 has 4 divisors (see below), whose sum is σ = 4247100. Its totient is φ = 4089696.

The previous prime is 4168387. The next prime is 4168403. The reversal of 4168397 is 7938614.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7938614 = 2 ⋅3969307.

It can be written as a sum of positive squares in 2 ways, for example, as 2019241 + 2149156 = 1421^2 + 1466^2 .

It is a cyclic number.

It is not a de Polignac number, because 4168397 - 2²⁰ = 3119821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4168397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4168327) 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, 39272 + ... + 39377.

It is an arithmetic number, because the mean of its divisors is an integer number (1061775).

Almost surely, 2^4168397 is an apocalyptic number.

It is an amenable number.

4168397 is a deficient number, since it is larger than the sum of its proper divisors (78703).

4168397 is an equidigital number, since it uses as much as digits as its factorization.

4168397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78702.

The product of its digits is 36288, while the sum is 38.

The square root of 4168397 is about 2041.6652517002. The cubic root of 4168397 is about 160.9371692644.

The spelling of 4168397 in words is "four million, one hundred sixty-eight thousand, three hundred ninety-seven".