3911923 has 2 divisors, whose sum is σ = 3911924. Its totient is φ = 3911922.

The previous prime is 3911911. The next prime is 3911927. The reversal of 3911923 is 3291193.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3911923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3911891 and 3911900.

It is not a weakly prime, because it can be changed into another prime (3911927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1955961 + 1955962.

It is an arithmetic number, because the mean of its divisors is an integer number (1955962).

Almost surely, 2^3911923 is an apocalyptic number.

3911923 is a deficient number, since it is larger than the sum of its proper divisors (1).

3911923 is an equidigital number, since it uses as much as digits as its factorization.

3911923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 28.

The square root of 3911923 is about 1977.8581850072. The cubic root of 3911923 is about 157.5663347015.

The spelling of 3911923 in words is "three million, nine hundred eleven thousand, nine hundred twenty-three".