7913923 has 2 divisors, whose sum is σ = 7913924. Its totient is φ = 7913922.

The previous prime is 7913911. The next prime is 7913947. The reversal of 7913923 is 3293197.

It is a weak prime.

It is an emirp because it is prime and its reverse (3293197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7913923 - 2¹⁷ = 7782851 is a prime.

7913923 is a lucky number.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (7913903) 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 as a sum of consecutive naturals, namely, 3956961 + 3956962.

It is an arithmetic number, because the mean of its divisors is an integer number (3956962).

Almost surely, 2^7913923 is an apocalyptic number.

7913923 is a deficient number, since it is larger than the sum of its proper divisors (1).

7913923 is an equidigital number, since it uses as much as digits as its factorization.

7913923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 34.

The square root of 7913923 is about 2813.1695647437. The cubic root of 7913923 is about 199.2801035210.

It can be divided in two parts, 7913 and 923, that added together give a square (8836 = 94²).

The spelling of 7913923 in words is "seven million, nine hundred thirteen thousand, nine hundred twenty-three".