3928423 has 4 divisors (see below), whose sum is σ = 4099248. Its totient is φ = 3757600.

The previous prime is 3928417. The next prime is 3928429. The reversal of 3928423 is 3248293.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3928417) and next prime (3928429).

It is a cyclic number.

It is not a de Polignac number, because 3928423 - 2⁵ = 3928391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85378 + ... + 85423.

It is an arithmetic number, because the mean of its divisors is an integer number (1024812).

Almost surely, 2^3928423 is an apocalyptic number.

3928423 is a deficient number, since it is larger than the sum of its proper divisors (170825).

3928423 is a wasteful number, since it uses less digits than its factorization.

3928423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170824.

The product of its digits is 10368, while the sum is 31.

The square root of 3928423 is about 1982.0249746156. The cubic root of 3928423 is about 157.7875556365.

The spelling of 3928423 in words is "three million, nine hundred twenty-eight thousand, four hundred twenty-three".