26428065 has 16 divisors (see below), whose sum is σ = 42620928. Its totient is φ = 13982976.

The previous prime is 26428063. The next prime is 26428091. The reversal of 26428065 is 56082462.

It is not a de Polignac number, because 26428065 - 2¹ = 26428063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26428063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5032 + ... + 8841.

It is an arithmetic number, because the mean of its divisors is an integer number (2663808).

Almost surely, 2^26428065 is an apocalyptic number.

It is an amenable number.

26428065 is a deficient number, since it is larger than the sum of its proper divisors (16192863).

26428065 is a wasteful number, since it uses less digits than its factorization.

26428065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14008.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 26428065 is about 5140.8233776313. The cubic root of 26428065 is about 297.8665866777.

The spelling of 26428065 in words is "twenty-six million, four hundred twenty-eight thousand, sixty-five".