26898866 has 4 divisors (see below), whose sum is σ = 40348302. Its totient is φ = 13449432.

The previous prime is 26898853. The next prime is 26898869. The reversal of 26898866 is 66889862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26884225 + 14641 = 5185^2 + 121^2 .

It is not an unprimeable number, because it can be changed into a prime (26898869) 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 as a sum of consecutive naturals, namely, 6724715 + ... + 6724718.

Almost surely, 2^26898866 is an apocalyptic number.

26898866 is a deficient number, since it is larger than the sum of its proper divisors (13449436).

26898866 is a wasteful number, since it uses less digits than its factorization.

26898866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13449435.

The product of its digits is 1990656, while the sum is 53.

The square root of 26898866 is about 5186.4116689673. The cubic root of 26898866 is about 299.6249609774.

The spelling of 26898866 in words is "twenty-six million, eight hundred ninety-eight thousand, eight hundred sixty-six".