26916489 has 16 divisors (see below), whose sum is σ = 39956800. Its totient is φ = 17908128.

The previous prime is 26916481. The next prime is 26916499. The reversal of 26916489 is 98461962.

It is a happy number.

It is not a de Polignac number, because 26916489 - 2³ = 26916481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26916481) 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 in 15 ways as a sum of consecutive naturals, for example, 23277 + ... + 24405.

It is an arithmetic number, because the mean of its divisors is an integer number (2497300).

Almost surely, 2^26916489 is an apocalyptic number.

It is an amenable number.

26916489 is a deficient number, since it is larger than the sum of its proper divisors (13040311).

26916489 is a wasteful number, since it uses less digits than its factorization.

26916489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021 (or 2015 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 26916489 is about 5188.1103496360. The cubic root of 26916489 is about 299.6903805626.

It can be divided in two parts, 2691 and 6489, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 26916489 in words is "twenty-six million, nine hundred sixteen thousand, four hundred eighty-nine".