13503797 has 4 divisors (see below), whose sum is σ = 14298156. Its totient is φ = 12709440.

The previous prime is 13503793. The next prime is 13503803. The reversal of 13503797 is 79730531.

13503797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9991921 + 3511876 = 3161^2 + 1874^2 .

It is a cyclic number.

It is not a de Polignac number, because 13503797 - 2² = 13503793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13503793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397154 + ... + 397187.

It is an arithmetic number, because the mean of its divisors is an integer number (3574539).

Almost surely, 2^13503797 is an apocalyptic number.

13503797 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13503797 is a deficient number, since it is larger than the sum of its proper divisors (794359).

13503797 is an equidigital number, since it uses as much as digits as its factorization.

13503797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794358.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 13503797 is about 3674.7512841007. The cubic root of 13503797 is about 238.1324792649.

The spelling of 13503797 in words is "thirteen million, five hundred three thousand, seven hundred ninety-seven".