26947321 has 2 divisors, whose sum is σ = 26947322. Its totient is φ = 26947320.

The previous prime is 26947303. The next prime is 26947357. The reversal of 26947321 is 12374962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26832400 + 114921 = 5180^2 + 339^2 .

It is a cyclic number.

It is not a de Polignac number, because 26947321 - 2⁵ = 26947289 is a prime.

It is not a weakly prime, because it can be changed into another prime (26947381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13473660 + 13473661.

It is an arithmetic number, because the mean of its divisors is an integer number (13473661).

Almost surely, 2^26947321 is an apocalyptic number.

It is an amenable number.

26947321 is a deficient number, since it is larger than the sum of its proper divisors (1).

26947321 is an equidigital number, since it uses as much as digits as its factorization.

26947321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 26947321 is about 5191.0809086355. The cubic root of 26947321 is about 299.8047655652.

The spelling of 26947321 in words is "twenty-six million, nine hundred forty-seven thousand, three hundred twenty-one".