26316899 has 16 divisors (see below), whose sum is σ = 31567872. Its totient is φ = 21450528.

The previous prime is 26316889. The next prime is 26316907. The reversal of 26316899 is 99861362.

It is a Cunningham number, because it is equal to 5130²-1.

It is a cyclic number.

It is not a de Polignac number, because 26316899 - 2⁴ = 26316883 is a prime.

It is a super-3 number, since 3×26316899³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (26316859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35537 + ... + 36269.

It is an arithmetic number, because the mean of its divisors is an integer number (1972992).

Almost surely, 2^26316899 is an apocalyptic number.

26316899 is a deficient number, since it is larger than the sum of its proper divisors (5250973).

26316899 is a wasteful number, since it uses less digits than its factorization.

26316899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986.

The product of its digits is 139968, while the sum is 44.

The square root of 26316899 is about 5129.9999025341. Note that the first 4 decimals coincide. The cubic root of 26316899 is about 297.4483548512.

The spelling of 26316899 in words is "twenty-six million, three hundred sixteen thousand, eight hundred ninety-nine".