26938561 has 8 divisors (see below), whose sum is σ = 30537920. Its totient is φ = 23557392.

The previous prime is 26938559. The next prime is 26938579. The reversal of 26938561 is 16583962.

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

It is a cyclic number.

It is not a de Polignac number, because 26938561 - 2¹ = 26938559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26938501) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54285 + ... + 54778.

It is an arithmetic number, because the mean of its divisors is an integer number (3817240).

Almost surely, 2^26938561 is an apocalyptic number.

It is an amenable number.

26938561 is a deficient number, since it is larger than the sum of its proper divisors (3599359).

26938561 is a wasteful number, since it uses less digits than its factorization.

26938561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109095.

The product of its digits is 77760, while the sum is 40.

The square root of 26938561 is about 5190.2370851436. The cubic root of 26938561 is about 299.7722753301.

The spelling of 26938561 in words is "twenty-six million, nine hundred thirty-eight thousand, five hundred sixty-one".