13936457 has 8 divisors (see below), whose sum is σ = 14399112. Its totient is φ = 13478400.

The previous prime is 13936441. The next prime is 13936463. The reversal of 13936457 is 75463931.

It is a happy number.

13936457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 657721 + 13278736 = 811^2 + 3644^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13936457 - 2⁴ = 13936441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13936457.

It is not an unprimeable number, because it can be changed into a prime (13936477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5657 + ... + 7737.

It is an arithmetic number, because the mean of its divisors is an integer number (1799889).

Almost surely, 2^13936457 is an apocalyptic number.

It is an amenable number.

13936457 is a deficient number, since it is larger than the sum of its proper divisors (462655).

13936457 is a wasteful number, since it uses less digits than its factorization.

13936457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299.

The product of its digits is 68040, while the sum is 38.

The square root of 13936457 is about 3733.1564392616. The cubic root of 13936457 is about 240.6490360428.

The spelling of 13936457 in words is "thirteen million, nine hundred thirty-six thousand, four hundred fifty-seven".