26988959 has 4 divisors (see below), whose sum is σ = 28162416. Its totient is φ = 25815504.

The previous prime is 26988919. The next prime is 26988967. The reversal of 26988959 is 95988962.

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

It is a cyclic number.

It is not a de Polignac number, because 26988959 - 2¹⁶ = 26923423 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 (26988919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586694 + ... + 586739.

It is an arithmetic number, because the mean of its divisors is an integer number (7040604).

Almost surely, 2^26988959 is an apocalyptic number.

26988959 is a deficient number, since it is larger than the sum of its proper divisors (1173457).

26988959 is a wasteful number, since it uses less digits than its factorization.

26988959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173456.

The product of its digits is 2799360, while the sum is 56.

The square root of 26988959 is about 5195.0898933512. The cubic root of 26988959 is about 299.9591018321.

The spelling of 26988959 in words is "twenty-six million, nine hundred eighty-eight thousand, nine hundred fifty-nine".