26805998 has 8 divisors (see below), whose sum is σ = 42325320. Its totient is φ = 12697560.

The previous prime is 26805997. The next prime is 26806049. The reversal of 26805998 is 89950862.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26805997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352673 + ... + 352748.

It is an arithmetic number, because the mean of its divisors is an integer number (5290665).

Almost surely, 2^26805998 is an apocalyptic number.

26805998 is a deficient number, since it is larger than the sum of its proper divisors (15519322).

26805998 is a wasteful number, since it uses less digits than its factorization.

26805998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705442.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 26805998 is about 5177.4509171985. The cubic root of 26805998 is about 299.2797462397.

The spelling of 26805998 in words is "twenty-six million, eight hundred five thousand, nine hundred ninety-eight".