3921923 has 8 divisors (see below), whose sum is σ = 4158720. Its totient is φ = 3688200.

The previous prime is 3921919. The next prime is 3921941. The reversal of 3921923 is 3291293.

3921923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3921923 - 2² = 3921919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3921913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2186 + ... + 3552.

It is an arithmetic number, because the mean of its divisors is an integer number (519840).

Almost surely, 2^3921923 is an apocalyptic number.

3921923 is a deficient number, since it is larger than the sum of its proper divisors (236797).

3921923 is a wasteful number, since it uses less digits than its factorization.

3921923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537.

The product of its digits is 2916, while the sum is 29.

The square root of 3921923 is about 1980.3845586148. The cubic root of 3921923 is about 157.7004820790.

The spelling of 3921923 in words is "three million, nine hundred twenty-one thousand, nine hundred twenty-three".