13998655 has 16 divisors (see below), whose sum is σ = 18432000. Its totient is φ = 10121760.

The previous prime is 13998653. The next prime is 13998659. The reversal of 13998655 is 55689931.

It is not a de Polignac number, because 13998655 - 2¹ = 13998653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13998653) 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, 10306 + ... + 11584.

It is an arithmetic number, because the mean of its divisors is an integer number (1152000).

Almost surely, 2^13998655 is an apocalyptic number.

13998655 is a deficient number, since it is larger than the sum of its proper divisors (4433345).

13998655 is a wasteful number, since it uses less digits than its factorization.

13998655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494.

The product of its digits is 291600, while the sum is 46.

The square root of 13998655 is about 3741.4776492717. The cubic root of 13998655 is about 241.0065079767.

It can be divided in two parts, 139986 and 55, that added together give a palindrome (140041).

The spelling of 13998655 in words is "thirteen million, nine hundred ninety-eight thousand, six hundred fifty-five".