3865923 has 6 divisors (see below), whose sum is σ = 5584124. Its totient is φ = 2577276.

The previous prime is 3865913. The next prime is 3865933. The reversal of 3865923 is 3295683.

It is an interprime number because it is at equal distance from previous prime (3865913) and next prime (3865933).

It is not a de Polignac number, because 3865923 - 2⁴ = 3865907 is a prime.

It is a super-3 number, since 3×3865923³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3865913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 214765 + ... + 214782.

Almost surely, 2^3865923 is an apocalyptic number.

3865923 is a deficient number, since it is larger than the sum of its proper divisors (1718201).

3865923 is a wasteful number, since it uses less digits than its factorization.

3865923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429553 (or 429550 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 3865923 is about 1966.1950564479. The cubic root of 3865923 is about 156.9462945307.

The spelling of 3865923 in words is "three million, eight hundred sixty-five thousand, nine hundred twenty-three".