26097491 has 8 divisors (see below), whose sum is σ = 30121824. Its totient is φ = 22147200.

The previous prime is 26097473. The next prime is 26097493. The reversal of 26097491 is 19479062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26097491 - 2¹⁸ = 25835347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26097493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17750 + ... + 19163.

It is an arithmetic number, because the mean of its divisors is an integer number (3765228).

Almost surely, 2^26097491 is an apocalyptic number.

26097491 is a deficient number, since it is larger than the sum of its proper divisors (4024333).

26097491 is a wasteful number, since it uses less digits than its factorization.

26097491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37021.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 26097491 is about 5108.5703479545. The cubic root of 26097491 is about 296.6194228238.

The spelling of 26097491 in words is "twenty-six million, ninety-seven thousand, four hundred ninety-one".