4167997 has 4 divisors (see below), whose sum is σ = 4174236. Its totient is φ = 4161760.

The previous prime is 4167979. The next prime is 4168001. The reversal of 4167997 is 7997614.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2134521 + 2033476 = 1461^2 + 1426^2 .

It is a cyclic number.

It is not a de Polignac number, because 4167997 - 2¹¹ = 4165949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4167197) 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, 1978 + ... + 3499.

It is an arithmetic number, because the mean of its divisors is an integer number (1043559).

Almost surely, 2^4167997 is an apocalyptic number.

It is an amenable number.

4167997 is a deficient number, since it is larger than the sum of its proper divisors (6239).

4167997 is an equidigital number, since it uses as much as digits as its factorization.

4167997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6238.

The product of its digits is 95256, while the sum is 43.

The square root of 4167997 is about 2041.5672900985. The cubic root of 4167997 is about 160.9320212481.

The spelling of 4167997 in words is "four million, one hundred sixty-seven thousand, nine hundred ninety-seven".