26601998 has 8 divisors (see below), whose sum is σ = 40384008. Its totient is φ = 13140664.

The previous prime is 26601997. The next prime is 26602021. The reversal of 26601998 is 89910662.

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 (26601997) 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, 79961 + ... + 80292.

It is an arithmetic number, because the mean of its divisors is an integer number (5048001).

Almost surely, 2^26601998 is an apocalyptic number.

26601998 is a deficient number, since it is larger than the sum of its proper divisors (13782010).

26601998 is a wasteful number, since it uses less digits than its factorization.

26601998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160338.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 26601998 is about 5157.7124774458. The cubic root of 26601998 is about 298.5186155593.

The spelling of 26601998 in words is "twenty-six million, six hundred one thousand, nine hundred ninety-eight".