13406091 has 16 divisors (see below), whose sum is σ = 18600960. Its totient is φ = 8578080.

The previous prime is 13406089. The next prime is 13406117. The reversal of 13406091 is 19060431.

It is not a de Polignac number, because 13406091 - 2¹ = 13406089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13406011) 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, 19056 + ... + 19746.

It is an arithmetic number, because the mean of its divisors is an integer number (1162560).

Almost surely, 2^13406091 is an apocalyptic number.

13406091 is a deficient number, since it is larger than the sum of its proper divisors (5194869).

13406091 is a wasteful number, since it uses less digits than its factorization.

13406091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 13406091 is about 3661.4329162228. The cubic root of 13406091 is about 237.5567568878.

The spelling of 13406091 in words is "thirteen million, four hundred six thousand, ninety-one".