13477664 has 12 divisors (see below), whose sum is σ = 26534214. Its totient is φ = 6738816.

The previous prime is 13477661. The next prime is 13477687. The reversal of 13477664 is 46677431.

It can be written as a sum of positive squares in only one way, i.e., 12250000 + 1227664 = 3500^2 + 1108^2 .

It is not an unprimeable number, because it can be changed into a prime (13477661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210557 + ... + 210620.

Almost surely, 2^13477664 is an apocalyptic number.

It is an amenable number.

13477664 is a deficient number, since it is larger than the sum of its proper divisors (13056550).

13477664 is an equidigital number, since it uses as much as digits as its factorization.

13477664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421187 (or 421179 counting only the distinct ones).

The product of its digits is 84672, while the sum is 38.

The square root of 13477664 is about 3671.1938112826. The cubic root of 13477664 is about 237.9787660834.

It can be divided in two parts, 13477 and 664, that added together give a palindrome (14141).

The spelling of 13477664 in words is "thirteen million, four hundred seventy-seven thousand, six hundred sixty-four".