3923481 has 16 divisors (see below), whose sum is σ = 5832000. Its totient is φ = 2331648.

The previous prime is 3923477. The next prime is 3923483. The reversal of 3923481 is 1843293.

It is not a de Polignac number, because 3923481 - 2² = 3923477 is a prime.

It is a super-2 number, since 2×3923481² = 30787406314722, which contains 22 as substring.

It is a Curzon number.

3923481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3923483) 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, 1056 + ... + 2993.

It is an arithmetic number, because the mean of its divisors is an integer number (364500).

Almost surely, 2^3923481 is an apocalyptic number.

It is an amenable number.

3923481 is a deficient number, since it is larger than the sum of its proper divisors (1908519).

3923481 is a wasteful number, since it uses less digits than its factorization.

3923481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088.

The product of its digits is 5184, while the sum is 30.

The square root of 3923481 is about 1980.7778775017. Note that the first 3 decimals coincide. The cubic root of 3923481 is about 157.7213617022.

The spelling of 3923481 in words is "three million, nine hundred twenty-three thousand, four hundred eighty-one".