26880865 has 8 divisors (see below), whose sum is σ = 35189568. Its totient is φ = 19549680.

The previous prime is 26880827. The next prime is 26880881. The reversal of 26880865 is 56808862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26880865 - 2²¹ = 24783713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244317 + ... + 244426.

It is an arithmetic number, because the mean of its divisors is an integer number (4398696).

Almost surely, 2^26880865 is an apocalyptic number.

It is an amenable number.

26880865 is a deficient number, since it is larger than the sum of its proper divisors (8308703).

26880865 is a wasteful number, since it uses less digits than its factorization.

26880865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488759.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 26880865 is about 5184.6759783038. The cubic root of 26880865 is about 299.5581086857.

The spelling of 26880865 in words is "twenty-six million, eight hundred eighty thousand, eight hundred sixty-five".