26898421 has 24 divisors (see below), whose sum is σ = 31256064. Its totient is φ = 23100000.

The previous prime is 26898397. The next prime is 26898427. The reversal of 26898421 is 12489862.

It is not a de Polignac number, because 26898421 - 2¹³ = 26890229 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 (26898427) 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 23 ways as a sum of consecutive naturals, for example, 266271 + ... + 266371.

It is an arithmetic number, because the mean of its divisors is an integer number (1302336).

Almost surely, 2^26898421 is an apocalyptic number.

It is an amenable number.

26898421 is a deficient number, since it is larger than the sum of its proper divisors (4357643).

26898421 is a wasteful number, since it uses less digits than its factorization.

26898421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 214 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 26898421 is about 5186.3687682231. The cubic root of 26898421 is about 299.6233086916.

It can be divided in two parts, 268 and 98421, that added together give a palindrome (98689).

The spelling of 26898421 in words is "twenty-six million, eight hundred ninety-eight thousand, four hundred twenty-one".