26428079 has 4 divisors (see below), whose sum is σ = 26926776. Its totient is φ = 25929384.

The previous prime is 26428063. The next prime is 26428091. The reversal of 26428079 is 97082462.

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

It is a cyclic number.

It is not a de Polignac number, because 26428079 - 2⁴ = 26428063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26428379) 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 3 ways as a sum of consecutive naturals, for example, 249269 + ... + 249374.

It is an arithmetic number, because the mean of its divisors is an integer number (6731694).

Almost surely, 2^26428079 is an apocalyptic number.

26428079 is a deficient number, since it is larger than the sum of its proper divisors (498697).

26428079 is an equidigital number, since it uses as much as digits as its factorization.

26428079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498696.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 26428079 is about 5140.8247392807. The cubic root of 26428079 is about 297.8666392749.

The spelling of 26428079 in words is "twenty-six million, four hundred twenty-eight thousand, seventy-nine".