13923823 has 4 divisors (see below), whose sum is σ = 14159880. Its totient is φ = 13687768.

The previous prime is 13923821. The next prime is 13923853. The reversal of 13923823 is 32832931.

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

It is a cyclic number.

It is not a de Polignac number, because 13923823 - 2¹ = 13923821 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 (13923821) 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, 117940 + ... + 118057.

It is an arithmetic number, because the mean of its divisors is an integer number (3539970).

Almost surely, 2^13923823 is an apocalyptic number.

13923823 is a deficient number, since it is larger than the sum of its proper divisors (236057).

13923823 is an equidigital number, since it uses as much as digits as its factorization.

13923823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236056.

The product of its digits is 7776, while the sum is 31.

The square root of 13923823 is about 3731.4639218409. The cubic root of 13923823 is about 240.5762944767.

The spelling of 13923823 in words is "thirteen million, nine hundred twenty-three thousand, eight hundred twenty-three".