14623681 has 6 divisors (see below), whose sum is σ = 14879282. Its totient is φ = 14372400.

The previous prime is 14623667. The next prime is 14623703. The reversal of 14623681 is 18632641.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9054081 + 5569600 = 3009^2 + 2360^2 .

It is not a de Polignac number, because 14623681 - 2⁵ = 14623649 is a prime.

It is a super-2 number, since 2×14623681² = 427704091979522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14623181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1381 + ... + 5581.

Almost surely, 2^14623681 is an apocalyptic number.

It is an amenable number.

14623681 is a deficient number, since it is larger than the sum of its proper divisors (255601).

14623681 is an frugal number, since it uses more digits than its factorization.

14623681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4319 (or 4260 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 14623681 is about 3824.0921798513. The cubic root of 14623681 is about 244.5413103167.

The spelling of 14623681 in words is "fourteen million, six hundred twenty-three thousand, six hundred eighty-one".