26196491 has 4 divisors (see below), whose sum is σ = 26206752. Its totient is φ = 26186232.

The previous prime is 26196487. The next prime is 26196493. The reversal of 26196491 is 19469162.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 19469162 = 2 ⋅9734581.

It is a cyclic number.

It is not a de Polignac number, because 26196491 - 2² = 26196487 is a prime.

It is a super-2 number, since 2×26196491² = 1372512281426162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26196493) 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, 2045 + ... + 7521.

It is an arithmetic number, because the mean of its divisors is an integer number (6551688).

Almost surely, 2^26196491 is an apocalyptic number.

26196491 is a deficient number, since it is larger than the sum of its proper divisors (10261).

26196491 is an equidigital number, since it uses as much as digits as its factorization.

26196491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10260.

The product of its digits is 23328, while the sum is 38.

The square root of 26196491 is about 5118.2507754115. The cubic root of 26196491 is about 296.9940216537.

The spelling of 26196491 in words is "twenty-six million, one hundred ninety-six thousand, four hundred ninety-one".