13706623 has 16 divisors (see below), whose sum is σ = 16200000. Its totient is φ = 11590656.

The previous prime is 13706611. The next prime is 13706663. The reversal of 13706623 is 32660731.

It is not a de Polignac number, because 13706623 - 2⁵ = 13706591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13706591 and 13706600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13706603) 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, 30303 + ... + 30751.

It is an arithmetic number, because the mean of its divisors is an integer number (1012500).

Almost surely, 2^13706623 is an apocalyptic number.

13706623 is a deficient number, since it is larger than the sum of its proper divisors (2493377).

13706623 is an frugal number, since it uses more digits than its factorization.

13706623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 13706623 is about 3702.2456698604. The cubic root of 13706623 is about 239.3188033292.

The spelling of 13706623 in words is "thirteen million, seven hundred six thousand, six hundred twenty-three".