26248769 has 4 divisors (see below), whose sum is σ = 26261844. Its totient is φ = 26235696.

The previous prime is 26248759. The next prime is 26248787. The reversal of 26248769 is 96784262.

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 5664400 + 20584369 = 2380^2 + 4537^2 .

It is a cyclic number.

It is not a de Polignac number, because 26248769 - 2⁴ = 26248753 is a prime.

It is a super-2 number, since 2×26248769² = 1377995748030722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26248759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2822 + ... + 7775.

It is an arithmetic number, because the mean of its divisors is an integer number (6565461).

Almost surely, 2^26248769 is an apocalyptic number.

It is an amenable number.

26248769 is a deficient number, since it is larger than the sum of its proper divisors (13075).

26248769 is a wasteful number, since it uses less digits than its factorization.

26248769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13074.

The product of its digits is 290304, while the sum is 44.

The square root of 26248769 is about 5123.3552482724. The cubic root of 26248769 is about 297.1914518716.

The spelling of 26248769 in words is "twenty-six million, two hundred forty-eight thousand, seven hundred sixty-nine".