26820601 has 4 divisors (see below), whose sum is σ = 27474804. Its totient is φ = 26166400.

The previous prime is 26820593. The next prime is 26820613. The reversal of 26820601 is 10602862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12418576 + 14402025 = 3524^2 + 3795^2 .

It is a cyclic number.

It is not a de Polignac number, because 26820601 - 2³ = 26820593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26826601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327040 + ... + 327121.

It is an arithmetic number, because the mean of its divisors is an integer number (6868701).

Almost surely, 2^26820601 is an apocalyptic number.

It is an amenable number.

26820601 is a deficient number, since it is larger than the sum of its proper divisors (654203).

26820601 is an equidigital number, since it uses as much as digits as its factorization.

26820601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654202.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 26820601 is about 5178.8609751566. The cubic root of 26820601 is about 299.3340821979.

The spelling of 26820601 in words is "twenty-six million, eight hundred twenty thousand, six hundred one".