3985923 has 16 divisors (see below), whose sum is σ = 5642496. Its totient is φ = 2497440.

The previous prime is 3985903. The next prime is 3985951. The reversal of 3985923 is 3295893.

It is not a de Polignac number, because 3985923 - 2⁶ = 3985859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3985903) 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, 3736 + ... + 4682.

It is an arithmetic number, because the mean of its divisors is an integer number (352656).

Almost surely, 2^3985923 is an apocalyptic number.

3985923 is a deficient number, since it is larger than the sum of its proper divisors (1656573).

3985923 is a wasteful number, since it uses less digits than its factorization.

3985923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034.

The product of its digits is 58320, while the sum is 39.

The square root of 3985923 is about 1996.4776482596. The cubic root of 3985923 is about 158.5536709508.

The spelling of 3985923 in words is "three million, nine hundred eighty-five thousand, nine hundred twenty-three".