13456891 has 8 divisors (see below), whose sum is σ = 15402464. Its totient is φ = 11517120.

The previous prime is 13456879. The next prime is 13456901. The reversal of 13456891 is 19865431.

13456891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13456891 - 2¹¹ = 13454843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13456891.

It is not an unprimeable number, because it can be changed into a prime (13456811) 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, 6301 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (1925308).

Almost surely, 2^13456891 is an apocalyptic number.

13456891 is a deficient number, since it is larger than the sum of its proper divisors (1945573).

13456891 is a wasteful number, since it uses less digits than its factorization.

13456891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901.

The product of its digits is 25920, while the sum is 37.

The square root of 13456891 is about 3668.3635316037. The cubic root of 13456891 is about 237.8564383840.

The spelling of 13456891 in words is "thirteen million, four hundred fifty-six thousand, eight hundred ninety-one".