3138873 has 16 divisors (see below), whose sum is σ = 4382400. Its totient is φ = 1995840.

The previous prime is 3138869. The next prime is 3138881. The reversal of 3138873 is 3788313.

It is not a de Polignac number, because 3138873 - 2² = 3138869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3138803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9318 + ... + 9648.

It is an arithmetic number, because the mean of its divisors is an integer number (273900).

Almost surely, 2^3138873 is an apocalyptic number.

It is an amenable number.

3138873 is a deficient number, since it is larger than the sum of its proper divisors (1243527).

3138873 is a wasteful number, since it uses less digits than its factorization.

3138873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472.

The product of its digits is 12096, while the sum is 33.

The square root of 3138873 is about 1771.6864846806. The cubic root of 3138873 is about 146.4169136749.

The spelling of 3138873 in words is "three million, one hundred thirty-eight thousand, eight hundred seventy-three".