13664900 has 18 divisors (see below), whose sum is σ = 29653050. Its totient is φ = 5465920.

The previous prime is 13664897. The next prime is 13664909. The reversal of 13664900 is 946631.

It can be written as a sum of positive squares in 3 ways, for example, as 3717184 + 9947716 = 1928^2 + 3154^2 .

It is not an unprimeable number, because it can be changed into a prime (13664909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68225 + ... + 68424.

Almost surely, 2^13664900 is an apocalyptic number.

13664900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13664900 is an abundant number, since it is smaller than the sum of its proper divisors (15988150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13664900 is a wasteful number, since it uses less digits than its factorization.

13664900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136663 (or 136656 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 13664900 is about 3696.6065519609. The cubic root of 13664900 is about 239.0757274780.

The spelling of 13664900 in words is "thirteen million, six hundred sixty-four thousand, nine hundred".