13783836 has 48 divisors (see below), whose sum is σ = 35417088. Its totient is φ = 4172080.

The previous prime is 13783817. The next prime is 13783837. The reversal of 13783836 is 63838731.

It is a junction number, because it is equal to n+sod(n) for n = 13783794 and 13783803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13783837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15541 + ... + 16403.

It is an arithmetic number, because the mean of its divisors is an integer number (737856).

Almost surely, 2^13783836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13783836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17708544).

13783836 is an abundant number, since it is smaller than the sum of its proper divisors (21633252).

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

13783836 is a wasteful number, since it uses less digits than its factorization.

13783836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 879 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 13783836 is about 3712.6588854889. The cubic root of 13783836 is about 239.7673439806.

Adding to 13783836 its sum of digits (39), we get a triangular number (13783875 = T₅₂₅₀).

The spelling of 13783836 in words is "thirteen million, seven hundred eighty-three thousand, eight hundred thirty-six".