13705986 has 24 divisors (see below), whose sum is σ = 31888080. Its totient is φ = 3915912.

The previous prime is 13705963. The next prime is 13705997. The reversal of 13705986 is 68950731.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23016 + ... + 23603.

It is an arithmetic number, because the mean of its divisors is an integer number (1328670).

Almost surely, 2^13705986 is an apocalyptic number.

13705986 is an abundant number, since it is smaller than the sum of its proper divisors (18182094).

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

13705986 is a wasteful number, since it uses less digits than its factorization.

13705986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46638 (or 46631 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 13705986 is about 3702.1596399939. The cubic root of 13705986 is about 239.3150959137.

The spelling of 13705986 in words is "thirteen million, seven hundred five thousand, nine hundred eighty-six".