26397982 has 16 divisors (see below), whose sum is σ = 42959952. Its totient is φ = 12093120.

The previous prime is 26397979. The next prime is 26397989. The reversal of 26397982 is 28979362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26397989) 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 7 ways as a sum of consecutive naturals, for example, 144 + ... + 7267.

It is an arithmetic number, because the mean of its divisors is an integer number (2684997).

Almost surely, 2^26397982 is an apocalyptic number.

26397982 is a deficient number, since it is larger than the sum of its proper divisors (16561970).

26397982 is a wasteful number, since it uses less digits than its factorization.

26397982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7563.

The product of its digits is 326592, while the sum is 46.

The square root of 26397982 is about 5137.8966513545. The cubic root of 26397982 is about 297.7535235045.

The spelling of 26397982 in words is "twenty-six million, three hundred ninety-seven thousand, nine hundred eighty-two".