26780983 has 2 divisors, whose sum is σ = 26780984. Its totient is φ = 26780982.

The previous prime is 26780951. The next prime is 26781017. The reversal of 26780983 is 38908762.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26780983 - 2⁵ = 26780951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26780483) 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, 13390491 + 13390492.

It is an arithmetic number, because the mean of its divisors is an integer number (13390492).

Almost surely, 2^26780983 is an apocalyptic number.

26780983 is a deficient number, since it is larger than the sum of its proper divisors (1).

26780983 is an equidigital number, since it uses as much as digits as its factorization.

26780983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 26780983 is about 5175.0345892564. The cubic root of 26780983 is about 299.1866226432.

The spelling of 26780983 in words is "twenty-six million, seven hundred eighty thousand, nine hundred eighty-three".