3923121 has 8 divisors (see below), whose sum is σ = 5261760. Its totient is φ = 2599952.

The previous prime is 3923099. The next prime is 3923159. The reversal of 3923121 is 1213293.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3923121 - 2⁵ = 3923089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3923321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3261 + ... + 4298.

It is an arithmetic number, because the mean of its divisors is an integer number (657720).

Almost surely, 2^3923121 is an apocalyptic number.

It is an amenable number.

3923121 is a deficient number, since it is larger than the sum of its proper divisors (1338639).

3923121 is a wasteful number, since it uses less digits than its factorization.

3923121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735.

The product of its digits is 324, while the sum is 21.

The square root of 3923121 is about 1980.6870020273. The cubic root of 3923121 is about 157.7165376334.

The spelling of 3923121 in words is "three million, nine hundred twenty-three thousand, one hundred twenty-one".