13331764 has 24 divisors (see below), whose sum is σ = 24280200. Its totient is φ = 6397440.

The previous prime is 13331761. The next prime is 13331797. The reversal of 13331764 is 46713331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6041764 + 7290000 = 2458^2 + 2700^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32392 + ... + 32800.

It is an arithmetic number, because the mean of its divisors is an integer number (1011675).

Almost surely, 2^13331764 is an apocalyptic number.

It is an amenable number.

13331764 is a deficient number, since it is larger than the sum of its proper divisors (10948436).

13331764 is a wasteful number, since it uses less digits than its factorization.

13331764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 721 counting only the distinct ones).

The product of its digits is 4536, while the sum is 28.

The square root of 13331764 is about 3651.2688205609. The cubic root of 13331764 is about 237.1169166823.

The spelling of 13331764 in words is "thirteen million, three hundred thirty-one thousand, seven hundred sixty-four".