4120447 has 4 divisors (see below), whose sum is σ = 4125016. Its totient is φ = 4115880.

The previous prime is 4120429. The next prime is 4120471. The reversal of 4120447 is 7440214.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4120447 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 (4120547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429 + ... + 2902.

It is an arithmetic number, because the mean of its divisors is an integer number (1031254).

Almost surely, 2^4120447 is an apocalyptic number.

4120447 is a deficient number, since it is larger than the sum of its proper divisors (4569).

4120447 is a wasteful number, since it uses less digits than its factorization.

4120447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4568.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 4120447 is about 2029.8884205788. Note that the first 3 decimals coincide. The cubic root of 4120447 is about 160.3176891052.

The spelling of 4120447 in words is "four million, one hundred twenty thousand, four hundred forty-seven".