26420065 has 12 divisors (see below), whose sum is σ = 36880596. Its totient is φ = 18116448.

The previous prime is 26420059. The next prime is 26420071. The reversal of 26420065 is 56002462.

It is an interprime number because it is at equal distance from previous prime (26420059) and next prime (26420071).

It can be written as a sum of positive squares in 2 ways, for example, as 6599761 + 19820304 = 2569^2 + 4452^2 .

It is not a de Polignac number, because 26420065 - 2¹³ = 26411873 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 53674 + ... + 54163.

It is an arithmetic number, because the mean of its divisors is an integer number (3073383).

Almost surely, 2^26420065 is an apocalyptic number.

It is an amenable number.

26420065 is a deficient number, since it is larger than the sum of its proper divisors (10460531).

26420065 is a wasteful number, since it uses less digits than its factorization.

26420065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107856 (or 107849 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 26420065 is about 5140.0452332640. The cubic root of 26420065 is about 297.8365280616.

The spelling of 26420065 in words is "twenty-six million, four hundred twenty thousand, sixty-five".