26198065 has 8 divisors (see below), whose sum is σ = 31970880. Its totient is φ = 20602992.

The previous prime is 26198063. The next prime is 26198083. The reversal of 26198065 is 56089162.

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 26198065 - 2¹ = 26198063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26198063) 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, 44109 + ... + 44698.

It is an arithmetic number, because the mean of its divisors is an integer number (3996360).

Almost surely, 2^26198065 is an apocalyptic number.

It is an amenable number.

26198065 is a deficient number, since it is larger than the sum of its proper divisors (5772815).

26198065 is an equidigital number, since it uses as much as digits as its factorization.

26198065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88871.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 26198065 is about 5118.4045365719. The cubic root of 26198065 is about 296.9999697688. Note that the first 4 decimals are identical.

The spelling of 26198065 in words is "twenty-six million, one hundred ninety-eight thousand, sixty-five".