13989455 has 8 divisors (see below), whose sum is σ = 17366400. Its totient is φ = 10805536.

The previous prime is 13989449. The next prime is 13989457. The reversal of 13989455 is 55498931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13989455 - 2²² = 9795151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13989457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48095 + ... + 48384.

It is an arithmetic number, because the mean of its divisors is an integer number (2170800).

Almost surely, 2^13989455 is an apocalyptic number.

13989455 is a deficient number, since it is larger than the sum of its proper divisors (3376945).

13989455 is an equidigital number, since it uses as much as digits as its factorization.

13989455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96513.

The product of its digits is 194400, while the sum is 44.

The square root of 13989455 is about 3740.2479864308. The cubic root of 13989455 is about 240.9536994322.

The spelling of 13989455 in words is "thirteen million, nine hundred eighty-nine thousand, four hundred fifty-five".