26197872 has 20 divisors (see below), whose sum is σ = 67677960. Its totient is φ = 8732608.

The previous prime is 26197861. The next prime is 26197921. The reversal of 26197872 is 27879162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272847 + ... + 272942.

It is an arithmetic number, because the mean of its divisors is an integer number (3383898).

Almost surely, 2^26197872 is an apocalyptic number.

It is an amenable number.

26197872 is an abundant number, since it is smaller than the sum of its proper divisors (41480088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26197872 is a wasteful number, since it uses less digits than its factorization.

26197872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545800 (or 545794 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 26197872 is about 5118.3856830059. The cubic root of 26197872 is about 296.9992404384. Note that the first 3 decimals are identical.

The spelling of 26197872 in words is "twenty-six million, one hundred ninety-seven thousand, eight hundred seventy-two".