26998879 has 4 divisors (see below), whose sum is σ = 27010360. Its totient is φ = 26987400.

The previous prime is 26998877. The next prime is 26998897. The reversal of 26998879 is 97889962.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 97889962 = 2 ⋅48944981.

It is a cyclic number.

It is not a de Polignac number, because 26998879 - 2¹ = 26998877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26998877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789 + ... + 7390.

It is an arithmetic number, because the mean of its divisors is an integer number (6752590).

Almost surely, 2^26998879 is an apocalyptic number.

26998879 is a deficient number, since it is larger than the sum of its proper divisors (11481).

26998879 is an equidigital number, since it uses as much as digits as its factorization.

26998879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11480.

The product of its digits is 3919104, while the sum is 58.

The square root of 26998879 is about 5196.0445533117. The cubic root of 26998879 is about 299.9958480907.

The spelling of 26998879 in words is "twenty-six million, nine hundred ninety-eight thousand, eight hundred seventy-nine".