13670823 has 16 divisors (see below), whose sum is σ = 19268480. Its totient is φ = 8597664.

The previous prime is 13670821. The next prime is 13670827. The reversal of 13670823 is 32807631.

13670823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13670823 - 2¹ = 13670821 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 (13670821) 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, 20940 + ... + 21582.

It is an arithmetic number, because the mean of its divisors is an integer number (1204280).

Almost surely, 2^13670823 is an apocalyptic number.

13670823 is a deficient number, since it is larger than the sum of its proper divisors (5597657).

13670823 is a wasteful number, since it uses less digits than its factorization.

13670823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 13670823 is about 3697.4076053365. The cubic root of 13670823 is about 239.1102646497.

The spelling of 13670823 in words is "thirteen million, six hundred seventy thousand, eight hundred twenty-three".