13705836 has 24 divisors (see below), whose sum is σ = 32845680. Its totient is φ = 4444992.

The previous prime is 13705831. The next prime is 13705837. The reversal of 13705836 is 63850731.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13705797 and 13705806.

It is not an unprimeable number, because it can be changed into a prime (13705831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14991 + ... + 15878.

It is an arithmetic number, because the mean of its divisors is an integer number (1368570).

Almost surely, 2^13705836 is an apocalyptic number.

It is an amenable number.

13705836 is an abundant number, since it is smaller than the sum of its proper divisors (19139844).

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

13705836 is a wasteful number, since it uses less digits than its factorization.

13705836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30913 (or 30911 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 13705836 is about 3702.1393814928. The cubic root of 13705836 is about 239.3142228792.

It can be divided in two parts, 13705 and 836, that added together give a palindrome (14541).

The spelling of 13705836 in words is "thirteen million, seven hundred five thousand, eight hundred thirty-six".