13720764 has 24 divisors (see below), whose sum is σ = 32161360. Its totient is φ = 4552704.

The previous prime is 13720753. The next prime is 13720769. The reversal of 13720764 is 46702731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13720769) 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, 252 + ... + 5244.

Almost surely, 2^13720764 is an apocalyptic number.

It is an amenable number.

13720764 is an abundant number, since it is smaller than the sum of its proper divisors (18440596).

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

13720764 is a wasteful number, since it uses less digits than its factorization.

13720764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5229 (or 5227 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 13720764 is about 3704.1549643610. The cubic root of 13720764 is about 239.4010760632.

The spelling of 13720764 in words is "thirteen million, seven hundred twenty thousand, seven hundred sixty-four".