3867123 has 16 divisors (see below), whose sum is σ = 5589920. Its totient is φ = 2363904.

The previous prime is 3867107. The next prime is 3867131. The reversal of 3867123 is 3217683.

It is not a de Polignac number, because 3867123 - 2⁴ = 3867107 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is the 1967-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867133) by changing a digit.

It is a nontrivial repunit in base 1966.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8715 + ... + 9147.

It is an arithmetic number, because the mean of its divisors is an integer number (349370).

Almost surely, 2^3867123 is an apocalyptic number.

3867123 is a deficient number, since it is larger than the sum of its proper divisors (1722797).

3867123 is a wasteful number, since it uses less digits than its factorization.

3867123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678.

The product of its digits is 6048, while the sum is 30.

The square root of 3867123 is about 1966.5001906941. The cubic root of 3867123 is about 156.9625317975.

It can be divided in two parts, 38 and 67123, that added together give a triangular number (67161 = T₃₆₆).

The spelling of 3867123 in words is "three million, eight hundred sixty-seven thousand, one hundred twenty-three".