26438961 has 8 divisors (see below), whose sum is σ = 37325664. Its totient is φ = 16589120.

The previous prime is 26438953. The next prime is 26438977. The reversal of 26438961 is 16983462.

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 26438961 - 2³ = 26438953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26438911) 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 7 ways as a sum of consecutive naturals, for example, 259155 + ... + 259256.

It is an arithmetic number, because the mean of its divisors is an integer number (4665708).

Almost surely, 2^26438961 is an apocalyptic number.

It is an amenable number.

26438961 is a deficient number, since it is larger than the sum of its proper divisors (10886703).

26438961 is a wasteful number, since it uses less digits than its factorization.

26438961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518431.

The product of its digits is 62208, while the sum is 39.

The square root of 26438961 is about 5141.8830208397. The cubic root of 26438961 is about 297.9075167570.

The spelling of 26438961 in words is "twenty-six million, four hundred thirty-eight thousand, nine hundred sixty-one".