13433823 has 16 divisors (see below), whose sum is σ = 21433440. Its totient is φ = 8266752.

The previous prime is 13433807. The next prime is 13433837. The reversal of 13433823 is 32833431.

13433823 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13433823 - 2⁴ = 13433807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13433803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18786 + ... + 19487.

It is an arithmetic number, because the mean of its divisors is an integer number (1339590).

Almost surely, 2^13433823 is an apocalyptic number.

13433823 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13433823 is a deficient number, since it is larger than the sum of its proper divisors (7999617).

13433823 is a wasteful number, since it uses less digits than its factorization.

13433823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38295 (or 38289 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 13433823 is about 3665.2180017019. The cubic root of 13433823 is about 237.7204483167.

The spelling of 13433823 in words is "thirteen million, four hundred thirty-three thousand, eight hundred twenty-three".