13420833 has 4 divisors (see below), whose sum is σ = 17894448. Its totient is φ = 8947220.

The previous prime is 13420807. The next prime is 13420873. The reversal of 13420833 is 33802431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13420833 - 2⁵ = 13420801 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13420873) 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, 2236803 + ... + 2236808.

It is an arithmetic number, because the mean of its divisors is an integer number (4473612).

Almost surely, 2^13420833 is an apocalyptic number.

It is an amenable number.

13420833 is a deficient number, since it is larger than the sum of its proper divisors (4473615).

13420833 is an equidigital number, since it uses as much as digits as its factorization.

13420833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473614.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 13420833 is about 3663.4455093532. The cubic root of 13420833 is about 237.6438013716.

The spelling of 13420833 in words is "thirteen million, four hundred twenty thousand, eight hundred thirty-three".