26808972 has 12 divisors (see below), whose sum is σ = 62554296. Its totient is φ = 8936320.

The previous prime is 26808959. The next prime is 26808973. The reversal of 26808972 is 27980862.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (26808973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117029 + ... + 1117052.

It is an arithmetic number, because the mean of its divisors is an integer number (5212858).

Almost surely, 2^26808972 is an apocalyptic number.

It is an amenable number.

26808972 is an abundant number, since it is smaller than the sum of its proper divisors (35745324).

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

26808972 is a wasteful number, since it uses less digits than its factorization.

26808972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234088 (or 2234086 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 26808972 is about 5177.7381162048. The cubic root of 26808972 is about 299.2908137260.

The spelling of 26808972 in words is "twenty-six million, eight hundred eight thousand, nine hundred seventy-two".