26897972 has 12 divisors (see below), whose sum is σ = 47335680. Its totient is φ = 13373496.

The previous prime is 26897947. The next prime is 26897989. The reversal of 26897972 is 27979862.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 26897972.

It is a congruent number.

It is an unprimeable number.

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, 18068 + ... + 19499.

It is an arithmetic number, because the mean of its divisors is an integer number (3944640).

Almost surely, 2^26897972 is an apocalyptic number.

It is an amenable number.

26897972 is a deficient number, since it is larger than the sum of its proper divisors (20437708).

26897972 is a wasteful number, since it uses less digits than its factorization.

26897972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37750 (or 37748 counting only the distinct ones).

The product of its digits is 762048, while the sum is 50.

The square root of 26897972 is about 5186.3254814946. The cubic root of 26897972 is about 299.6216415354.

The spelling of 26897972 in words is "twenty-six million, eight hundred ninety-seven thousand, nine hundred seventy-two".