26872663 has 2 divisors, whose sum is σ = 26872664. Its totient is φ = 26872662.

The previous prime is 26872639. The next prime is 26872667. The reversal of 26872663 is 36627862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26872663 - 2¹⁷ = 26741591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26872667) 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, 13436331 + 13436332.

It is an arithmetic number, because the mean of its divisors is an integer number (13436332).

Almost surely, 2^26872663 is an apocalyptic number.

26872663 is a deficient number, since it is larger than the sum of its proper divisors (1).

26872663 is an equidigital number, since it uses as much as digits as its factorization.

26872663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 40.

The square root of 26872663 is about 5183.8849331365. The cubic root of 26872663 is about 299.5276381193.

The spelling of 26872663 in words is "twenty-six million, eight hundred seventy-two thousand, six hundred sixty-three".