13703391 has 16 divisors (see below), whose sum is σ = 21863520. Its totient is φ = 8432640.

The previous prime is 13703353. The next prime is 13703407. The reversal of 13703391 is 19330731.

13703391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13703391 - 2⁹ = 13702879 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13703321) 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 15 ways as a sum of consecutive naturals, for example, 19170 + ... + 19871.

It is an arithmetic number, because the mean of its divisors is an integer number (1366470).

Almost surely, 2^13703391 is an apocalyptic number.

13703391 is a deficient number, since it is larger than the sum of its proper divisors (8160129).

13703391 is a wasteful number, since it uses less digits than its factorization.

13703391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39063 (or 39057 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 27.

The square root of 13703391 is about 3701.8091522930. The cubic root of 13703391 is about 239.2999915189.

It can be divided in two parts, 1370339 and 1, that added together give a triangular number (1370340 = T₁₆₅₅).

The spelling of 13703391 in words is "thirteen million, seven hundred three thousand, three hundred ninety-one".