26865413 has 4 divisors (see below), whose sum is σ = 26882220. Its totient is φ = 26848608.

The previous prime is 26865409. The next prime is 26865427. The reversal of 26865413 is 31456862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18472804 + 8392609 = 4298^2 + 2897^2 .

It is a cyclic number.

It is not a de Polignac number, because 26865413 - 2² = 26865409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26865493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5720 + ... + 9297.

It is an arithmetic number, because the mean of its divisors is an integer number (6720555).

Almost surely, 2^26865413 is an apocalyptic number.

It is an amenable number.

26865413 is a deficient number, since it is larger than the sum of its proper divisors (16807).

26865413 is a wasteful number, since it uses less digits than its factorization.

26865413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16806.

The product of its digits is 34560, while the sum is 35.

The square root of 26865413 is about 5183.1856034682. The cubic root of 26865413 is about 299.5006990860.

The spelling of 26865413 in words is "twenty-six million, eight hundred sixty-five thousand, four hundred thirteen".