14638717 has 12 divisors (see below), whose sum is σ = 15982420. Its totient is φ = 13405248.

The previous prime is 14638703. The next prime is 14638753. The reversal of 14638717 is 71783641.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 4468996 + 10169721 = 2114^2 + 3189^2 .

It is not a de Polignac number, because 14638717 - 2¹⁵ = 14605949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14638817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395623 + ... + 395659.

Almost surely, 2^14638717 is an apocalyptic number.

14638717 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

14638717 is a deficient number, since it is larger than the sum of its proper divisors (1343703).

14638717 is an frugal number, since it uses more digits than its factorization.

14638717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 54 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 14638717 is about 3826.0576315576. The cubic root of 14638717 is about 244.6250936829.

Multiplying 14638717 by its sum of digits (37), we get a square (541632529 = 23273²).

14638717 divided by its sum of digits (37) gives a square (395641 = 629²).

The spelling of 14638717 in words is "fourteen million, six hundred thirty-eight thousand, seven hundred seventeen".