3967923 has 4 divisors (see below), whose sum is σ = 5290568. Its totient is φ = 2645280.

The previous prime is 3967913. The next prime is 3967961. The reversal of 3967923 is 3297693.

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

It is not a de Polignac number, because 3967923 - 2¹⁷ = 3836851 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3967913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661318 + ... + 661323.

It is an arithmetic number, because the mean of its divisors is an integer number (1322642).

Almost surely, 2^3967923 is an apocalyptic number.

3967923 is a deficient number, since it is larger than the sum of its proper divisors (1322645).

3967923 is a wasteful number, since it uses less digits than its factorization.

3967923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322644.

The product of its digits is 61236, while the sum is 39.

The square root of 3967923 is about 1991.9646081193. The cubic root of 3967923 is about 158.3146403293.

The spelling of 3967923 in words is "three million, nine hundred sixty-seven thousand, nine hundred twenty-three".