26220973 has 2 divisors, whose sum is σ = 26220974. Its totient is φ = 26220972.

The previous prime is 26220967. The next prime is 26220977. The reversal of 26220973 is 37902262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14235529 + 11985444 = 3773^2 + 3462^2 .

It is a cyclic number.

It is not a de Polignac number, because 26220973 - 2⁹ = 26220461 is a prime.

It is a super-3 number, since 3×26220973³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26220977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13110486 + 13110487.

It is an arithmetic number, because the mean of its divisors is an integer number (13110487).

Almost surely, 2^26220973 is an apocalyptic number.

It is an amenable number.

26220973 is a deficient number, since it is larger than the sum of its proper divisors (1).

26220973 is an equidigital number, since it uses as much as digits as its factorization.

26220973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 26220973 is about 5120.6418542991. The cubic root of 26220973 is about 297.0865116971.

The spelling of 26220973 in words is "twenty-six million, two hundred twenty thousand, nine hundred seventy-three".