3811873 has 4 divisors (see below), whose sum is σ = 4105108. Its totient is φ = 3518640.

The previous prime is 3811817. The next prime is 3811877. The reversal of 3811873 is 3781183.

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 1871424 + 1940449 = 1368^2 + 1393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3811873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3811877) 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, 146598 + ... + 146623.

It is an arithmetic number, because the mean of its divisors is an integer number (1026277).

Almost surely, 2^3811873 is an apocalyptic number.

It is an amenable number.

3811873 is a deficient number, since it is larger than the sum of its proper divisors (293235).

3811873 is a wasteful number, since it uses less digits than its factorization.

3811873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293234.

The product of its digits is 4032, while the sum is 31.

The square root of 3811873 is about 1952.4018541274. The cubic root of 3811873 is about 156.2114298398.

It can be divided in two parts, 38 and 11873, that added together give a palindrome (11911).

The spelling of 3811873 in words is "three million, eight hundred eleven thousand, eight hundred seventy-three".