13378743 has 32 divisors (see below), whose sum is σ = 22993920. Its totient is φ = 7529760.

The previous prime is 13378741. The next prime is 13378777. The reversal of 13378743 is 34787331.

13378743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13378743 - 2¹ = 13378741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13378698 and 13378707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13378741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12921 + ... + 13917.

It is an arithmetic number, because the mean of its divisors is an integer number (718560).

Almost surely, 2^13378743 is an apocalyptic number.

13378743 is a deficient number, since it is larger than the sum of its proper divisors (9615177).

13378743 is an equidigital number, since it uses as much as digits as its factorization.

13378743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1078 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 13378743 is about 3657.6964062098. The cubic root of 13378743 is about 237.3951108398.

The spelling of 13378743 in words is "thirteen million, three hundred seventy-eight thousand, seven hundred forty-three".