13738623 has 4 divisors (see below), whose sum is σ = 18318168. Its totient is φ = 9159080.

The previous prime is 13738609. The next prime is 13738633. The reversal of 13738623 is 32683731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13738623 - 2⁶ = 13738559 is a prime.

It is a super-2 number, since 2×13738623² = 377499523872258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13738633) 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, 2289768 + ... + 2289773.

It is an arithmetic number, because the mean of its divisors is an integer number (4579542).

Almost surely, 2^13738623 is an apocalyptic number.

13738623 is a deficient number, since it is larger than the sum of its proper divisors (4579545).

13738623 is an equidigital number, since it uses as much as digits as its factorization.

13738623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579544.

The product of its digits is 18144, while the sum is 33.

The square root of 13738623 is about 3706.5648517192. The cubic root of 13738623 is about 239.5048994891.

The spelling of 13738623 in words is "thirteen million, seven hundred thirty-eight thousand, six hundred twenty-three".