4049917 has 4 divisors (see below), whose sum is σ = 4074336. Its totient is φ = 4025500.

The previous prime is 4049897. The next prime is 4049921. The reversal of 4049917 is 7199404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4049917 - 2⁷ = 4049789 is a prime.

It is a Duffinian number.

4049917 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4049977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11959 + ... + 12292.

It is an arithmetic number, because the mean of its divisors is an integer number (1018584).

Almost surely, 2^4049917 is an apocalyptic number.

It is an amenable number.

4049917 is a deficient number, since it is larger than the sum of its proper divisors (24419).

4049917 is a wasteful number, since it uses less digits than its factorization.

4049917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24418.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 4049917 is about 2012.4405581284. The cubic root of 4049917 is about 159.3976964729.

The spelling of 4049917 in words is "four million, forty-nine thousand, nine hundred seventeen".