26972563 has 2 divisors, whose sum is σ = 26972564. Its totient is φ = 26972562.

The previous prime is 26972527. The next prime is 26972587. The reversal of 26972563 is 36527962.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26972563 is a prime.

It is not a weakly prime, because it can be changed into another prime (26972503) 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 as a sum of consecutive naturals, namely, 13486281 + 13486282.

It is an arithmetic number, because the mean of its divisors is an integer number (13486282).

Almost surely, 2^26972563 is an apocalyptic number.

26972563 is a deficient number, since it is larger than the sum of its proper divisors (1).

26972563 is an equidigital number, since it uses as much as digits as its factorization.

26972563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The square root of 26972563 is about 5193.5116250953. The cubic root of 26972563 is about 299.8983470410.

The spelling of 26972563 in words is "twenty-six million, nine hundred seventy-two thousand, five hundred sixty-three".