13063720 has 16 divisors (see below), whose sum is σ = 29393460. Its totient is φ = 5225472.

The previous prime is 13063709. The next prime is 13063733. The reversal of 13063720 is 2736031.

It can be written as a sum of positive squares in 2 ways, for example, as 12489156 + 574564 = 3534^2 + 758^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13063691 and 13063700.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 163257 + ... + 163336.

Almost surely, 2^13063720 is an apocalyptic number.

13063720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13063720 is an abundant number, since it is smaller than the sum of its proper divisors (16329740).

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

13063720 is a wasteful number, since it uses less digits than its factorization.

13063720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326604 (or 326600 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 13063720 is about 3614.3768480888. The cubic root of 13063720 is about 235.5170147115.

Adding to 13063720 its reverse (2736031), we get a palindrome (15799751).

The spelling of 13063720 in words is "thirteen million, sixty-three thousand, seven hundred twenty".