26945613 has 6 divisors (see below), whose sum is σ = 38921454. Its totient is φ = 17963736.

The previous prime is 26945579. The next prime is 26945621. The reversal of 26945613 is 31654962.

It is a happy number.

26945613 is a `hidden beast` number, since 2 + 6 + 94 + 561 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26193924 + 751689 = 5118^2 + 867^2 .

It is a de Polignac number, because none of the positive numbers 2^k-26945613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26945623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1496970 + ... + 1496987.

It is an arithmetic number, because the mean of its divisors is an integer number (6486909).

Almost surely, 2^26945613 is an apocalyptic number.

It is an amenable number.

26945613 is a deficient number, since it is larger than the sum of its proper divisors (11975841).

26945613 is a wasteful number, since it uses less digits than its factorization.

26945613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993963 (or 2993960 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 26945613 is about 5190.9163930851. The cubic root of 26945613 is about 299.7984312638.

The spelling of 26945613 in words is "twenty-six million, nine hundred forty-five thousand, six hundred thirteen".