26481393 has 12 divisors (see below), whose sum is σ = 40501188. Its totient is φ = 16615680.

The previous prime is 26481391. The next prime is 26481401. The reversal of 26481393 is 39318462.

26481393 is a `hidden beast` number, since 2 + 648 + 1 + 3 + 9 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24770529 + 1710864 = 4977^2 + 1308^2 .

It is not a de Polignac number, because 26481393 - 2¹ = 26481391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26481391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86388 + ... + 86693.

It is an arithmetic number, because the mean of its divisors is an integer number (3375099).

Almost surely, 2^26481393 is an apocalyptic number.

It is an amenable number.

26481393 is a deficient number, since it is larger than the sum of its proper divisors (14019795).

26481393 is a wasteful number, since it uses less digits than its factorization.

26481393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173104 (or 173101 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 26481393 is about 5146.0074815336. The cubic root of 26481393 is about 298.0668025845.

The spelling of 26481393 in words is "twenty-six million, four hundred eighty-one thousand, three hundred ninety-three".