26097919 has 4 divisors (see below), whose sum is σ = 26124696. Its totient is φ = 26071144.

The previous prime is 26097859. The next prime is 26097923. The reversal of 26097919 is 91979062.

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 26097919 - 2⁷ = 26097791 is a prime.

It is a super-2 number, since 2×26097919² = 1362202752261122, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26097949) 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, 11869 + ... + 13894.

It is an arithmetic number, because the mean of its divisors is an integer number (6531174).

Almost surely, 2^26097919 is an apocalyptic number.

26097919 is a deficient number, since it is larger than the sum of its proper divisors (26777).

26097919 is a wasteful number, since it uses less digits than its factorization.

26097919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26776.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 26097919 is about 5108.6122381719. The cubic root of 26097919 is about 296.6210443388.

The spelling of 26097919 in words is "twenty-six million, ninety-seven thousand, nine hundred nineteen".