13523826 has 8 divisors (see below), whose sum is σ = 27047664. Its totient is φ = 4507940.

The previous prime is 13523821. The next prime is 13523863. The reversal of 13523826 is 62832531.

It is a sphenic number, since it is the product of 3 distinct primes.

13523826 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13523793 and 13523802.

It is not an unprimeable number, because it can be changed into a prime (13523821) 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, 1126980 + ... + 1126991.

It is an arithmetic number, because the mean of its divisors is an integer number (3380958).

Almost surely, 2^13523826 is an apocalyptic number.

13523826 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13523826 is a wasteful number, since it uses less digits than its factorization.

13523826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253976.

The product of its digits is 8640, while the sum is 30.

The square root of 13523826 is about 3677.4754927803. The cubic root of 13523826 is about 238.2501547917.

The spelling of 13523826 in words is "thirteen million, five hundred twenty-three thousand, eight hundred twenty-six".