26828413 has 2 divisors, whose sum is σ = 26828414. Its totient is φ = 26828412.

The previous prime is 26828401. The next prime is 26828443. The reversal of 26828413 is 31482862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20412324 + 6416089 = 4518^2 + 2533^2 .

It is a cyclic number.

It is not a de Polignac number, because 26828413 - 2⁵ = 26828381 is a prime.

It is equal to p_1672981 and since 26828413 and 1672981 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26828443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13414206 + 13414207.

It is an arithmetic number, because the mean of its divisors is an integer number (13414207).

Almost surely, 2^26828413 is an apocalyptic number.

It is an amenable number.

26828413 is a deficient number, since it is larger than the sum of its proper divisors (1).

26828413 is an equidigital number, since it uses as much as digits as its factorization.

26828413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 34.

The square root of 26828413 is about 5179.6151401431. The cubic root of 26828413 is about 299.3631415871.

The spelling of 26828413 in words is "twenty-six million, eight hundred twenty-eight thousand, four hundred thirteen".