26988568 has 16 divisors (see below), whose sum is σ = 52804080. Its totient is φ = 12907488.

The previous prime is 26988557. The next prime is 26988583. The reversal of 26988568 is 86588962.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73155 + ... + 73522.

It is an arithmetic number, because the mean of its divisors is an integer number (3300255).

Almost surely, 2^26988568 is an apocalyptic number.

It is an amenable number.

26988568 is a deficient number, since it is larger than the sum of its proper divisors (25815512).

26988568 is a wasteful number, since it uses less digits than its factorization.

26988568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146706 (or 146702 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The square root of 26988568 is about 5195.0522615273. The cubic root of 26988568 is about 299.9576532821.

It can be divided in two parts, 26988 and 568, that added together give a square (27556 = 166²).

The spelling of 26988568 in words is "twenty-six million, nine hundred eighty-eight thousand, five hundred sixty-eight".