13449623 has 4 divisors (see below), whose sum is σ = 14672328. Its totient is φ = 12226920.

The previous prime is 13449617. The next prime is 13449677. The reversal of 13449623 is 32694431.

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 13449623 - 2⁴ = 13449607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13449623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13449323) 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, 611336 + ... + 611357.

It is an arithmetic number, because the mean of its divisors is an integer number (3668082).

Almost surely, 2^13449623 is an apocalyptic number.

13449623 is a deficient number, since it is larger than the sum of its proper divisors (1222705).

13449623 is a wasteful number, since it uses less digits than its factorization.

13449623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222704.

The product of its digits is 15552, while the sum is 32.

The square root of 13449623 is about 3667.3727653458. The cubic root of 13449623 is about 237.8136089787.

The spelling of 13449623 in words is "thirteen million, four hundred forty-nine thousand, six hundred twenty-three".