3815873 has 4 divisors (see below), whose sum is σ = 3822468. Its totient is φ = 3809280.

The previous prime is 3815869. The next prime is 3815879. The reversal of 3815873 is 3785183.

3815873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1481089 + 2334784 = 1217^2 + 1528^2 .

It is a cyclic number.

It is not a de Polignac number, because 3815873 - 2² = 3815869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3815879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2336 + ... + 3617.

It is an arithmetic number, because the mean of its divisors is an integer number (955617).

Almost surely, 2^3815873 is an apocalyptic number.

It is an amenable number.

3815873 is a deficient number, since it is larger than the sum of its proper divisors (6595).

3815873 is an equidigital number, since it uses as much as digits as its factorization.

3815873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6594.

The product of its digits is 20160, while the sum is 35.

The square root of 3815873 is about 1953.4259648116. The cubic root of 3815873 is about 156.2660510444.

The spelling of 3815873 in words is "three million, eight hundred fifteen thousand, eight hundred seventy-three".