4001873 has 2 divisors, whose sum is σ = 4001874. Its totient is φ = 4001872.

The previous prime is 4001867. The next prime is 4001891. The reversal of 4001873 is 3781004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3952144 + 49729 = 1988^2 + 223^2 .

It is a cyclic number.

It is not a de Polignac number, because 4001873 - 2⁸ = 4001617 is a prime.

It is not a weakly prime, because it can be changed into another prime (4001863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000936 + 2000937.

It is an arithmetic number, because the mean of its divisors is an integer number (2000937).

Almost surely, 2^4001873 is an apocalyptic number.

It is an amenable number.

4001873 is a deficient number, since it is larger than the sum of its proper divisors (1).

4001873 is an equidigital number, since it uses as much as digits as its factorization.

4001873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 4001873 is about 2000.4681951983. The cubic root of 4001873 is about 158.7648780154.

Adding to 4001873 its reverse (3781004), we get a palindrome (7782877).

The spelling of 4001873 in words is "four million, one thousand, eight hundred seventy-three".