26917961 has 8 divisors (see below), whose sum is σ = 31109760. Its totient is φ = 22812768.

The previous prime is 26917949. The next prime is 26917967. The reversal of 26917961 is 16971962.

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 26917961 - 2¹⁰ = 26916937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26917967) 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, 20981 + ... + 22226.

It is an arithmetic number, because the mean of its divisors is an integer number (3888720).

Almost surely, 2^26917961 is an apocalyptic number.

It is an amenable number.

26917961 is a deficient number, since it is larger than the sum of its proper divisors (4191799).

26917961 is an equidigital number, since it uses as much as digits as its factorization.

26917961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43303.

The product of its digits is 40824, while the sum is 41.

The square root of 26917961 is about 5188.2522105233. The cubic root of 26917961 is about 299.6958435857.

The spelling of 26917961 in words is "twenty-six million, nine hundred seventeen thousand, nine hundred sixty-one".