13665488 has 10 divisors (see below), whose sum is σ = 26476914. Its totient is φ = 6832736.

The previous prime is 13665481. The next prime is 13665493. The reversal of 13665488 is 88456631.

It can be written as a sum of positive squares in only one way, i.e., 12759184 + 906304 = 3572^2 + 952^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13665481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427031 + ... + 427062.

Almost surely, 2^13665488 is an apocalyptic number.

It is an amenable number.

13665488 is a deficient number, since it is larger than the sum of its proper divisors (12811426).

13665488 is an equidigital number, since it uses as much as digits as its factorization.

13665488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854101 (or 854095 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 13665488 is about 3696.6860835078. The cubic root of 13665488 is about 239.0791565679.

The spelling of 13665488 in words is "thirteen million, six hundred sixty-five thousand, four hundred eighty-eight".