3138863 has 16 divisors (see below), whose sum is σ = 4092480. Its totient is φ = 2336256.

The previous prime is 3138853. The next prime is 3138869. The reversal of 3138863 is 3688313.

It is a happy number.

It is not a de Polignac number, because 3138863 - 2⁴ = 3138847 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138869) 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, 533 + ... + 2561.

It is an arithmetic number, because the mean of its divisors is an integer number (255780).

Almost surely, 2^3138863 is an apocalyptic number.

3138863 is a deficient number, since it is larger than the sum of its proper divisors (953617).

3138863 is a wasteful number, since it uses less digits than its factorization.

3138863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066.

The product of its digits is 10368, while the sum is 32.

The square root of 3138863 is about 1771.6836625086. The cubic root of 3138863 is about 146.4167581870.

The spelling of 3138863 in words is "three million, one hundred thirty-eight thousand, eight hundred sixty-three".