26890839 has 8 divisors (see below), whose sum is σ = 39838320. Its totient is φ = 17927208.

The previous prime is 26890837. The next prime is 26890847. The reversal of 26890839 is 93809862.

It is not a de Polignac number, because 26890839 - 2¹ = 26890837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26890794 and 26890803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26890837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497952 + ... + 498005.

It is an arithmetic number, because the mean of its divisors is an integer number (4979790).

Almost surely, 2^26890839 is an apocalyptic number.

26890839 is a deficient number, since it is larger than the sum of its proper divisors (12947481).

26890839 is an equidigital number, since it uses as much as digits as its factorization.

26890839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995966 (or 995960 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 26890839 is about 5185.6377621272. The cubic root of 26890839 is about 299.5951539112.

The spelling of 26890839 in words is "twenty-six million, eight hundred ninety thousand, eight hundred thirty-nine".