26961065 has 8 divisors (see below), whose sum is σ = 34256520. Its totient is φ = 20300032.

The previous prime is 26961061. The next prime is 26961073. The reversal of 26961065 is 56016962.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8779369 + 18181696 = 2963^2 + 4264^2 .

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 26961065 - 2² = 26961061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26961061) 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, 158510 + ... + 158679.

It is an arithmetic number, because the mean of its divisors is an integer number (4282065).

Almost surely, 2^26961065 is an apocalyptic number.

It is an amenable number.

26961065 is a deficient number, since it is larger than the sum of its proper divisors (7295455).

26961065 is a wasteful number, since it uses less digits than its factorization.

26961065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317211.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 26961065 is about 5192.4045489542. The cubic root of 26961065 is about 299.8557269250.

The spelling of 26961065 in words is "twenty-six million, nine hundred sixty-one thousand, sixty-five".