26198807 has 2 divisors, whose sum is σ = 26198808. Its totient is φ = 26198806.

The previous prime is 26198797. The next prime is 26198831. The reversal of 26198807 is 70889162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26198807 - 2⁴ = 26198791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26198857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13099403 + 13099404.

It is an arithmetic number, because the mean of its divisors is an integer number (13099404).

Almost surely, 2^26198807 is an apocalyptic number.

26198807 is a deficient number, since it is larger than the sum of its proper divisors (1).

26198807 is an equidigital number, since it uses as much as digits as its factorization.

26198807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 26198807 is about 5118.4770195831. The cubic root of 26198807 is about 297.0027736896.

The spelling of 26198807 in words is "twenty-six million, one hundred ninety-eight thousand, eight hundred seven".