11393923 has 2 divisors, whose sum is σ = 11393924. Its totient is φ = 11393922.

The previous prime is 11393873. The next prime is 11393929. The reversal of 11393923 is 32939311.

It is a strong prime.

It is an emirp because it is prime and its reverse (32939311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11393923 is a prime.

It is not a weakly prime, because it can be changed into another prime (11393929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5696961 + 5696962.

It is an arithmetic number, because the mean of its divisors is an integer number (5696962).

Almost surely, 2^11393923 is an apocalyptic number.

11393923 is a deficient number, since it is larger than the sum of its proper divisors (1).

11393923 is an equidigital number, since it uses as much as digits as its factorization.

11393923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4374, while the sum is 31.

The square root of 11393923 is about 3375.4885572314. The cubic root of 11393923 is about 225.0217131309.

The spelling of 11393923 in words is "eleven million, three hundred ninety-three thousand, nine hundred twenty-three".