26898189 has 16 divisors (see below), whose sum is σ = 36796032. Its totient is φ = 17471168.

The previous prime is 26898187. The next prime is 26898191. The reversal of 26898189 is 98189862.

It is an interprime number because it is at equal distance from previous prime (26898187) and next prime (26898191).

It is a cyclic number.

It is not a de Polignac number, because 26898189 - 2¹ = 26898187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26898187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26047 + ... + 27059.

It is an arithmetic number, because the mean of its divisors is an integer number (2299752).

Almost surely, 2^26898189 is an apocalyptic number.

It is an amenable number.

26898189 is a deficient number, since it is larger than the sum of its proper divisors (9897843).

26898189 is a wasteful number, since it uses less digits than its factorization.

26898189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236.

The product of its digits is 497664, while the sum is 51.

The square root of 26898189 is about 5186.3464018517. The cubic root of 26898189 is about 299.6224472680.

It can be divided in two parts, 2689 and 8189, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 26898189 in words is "twenty-six million, eight hundred ninety-eight thousand, one hundred eighty-nine".