26898439 has 2 divisors, whose sum is σ = 26898440. Its totient is φ = 26898438.

The previous prime is 26898427. The next prime is 26898461. The reversal of 26898439 is 93489862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26898439 - 2¹³ = 26890247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26898392 and 26898401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26898479) 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 as a sum of consecutive naturals, namely, 13449219 + 13449220.

It is an arithmetic number, because the mean of its divisors is an integer number (13449220).

Almost surely, 2^26898439 is an apocalyptic number.

26898439 is a deficient number, since it is larger than the sum of its proper divisors (1).

26898439 is an equidigital number, since it uses as much as digits as its factorization.

26898439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 49.

The square root of 26898439 is about 5186.3705035410. The cubic root of 26898439 is about 299.6233755260.

The spelling of 26898439 in words is "twenty-six million, eight hundred ninety-eight thousand, four hundred thirty-nine".