26948557 has 2 divisors, whose sum is σ = 26948558. Its totient is φ = 26948556.

The previous prime is 26948533. The next prime is 26948561. The reversal of 26948557 is 75584962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22762441 + 4186116 = 4771^2 + 2046^2 .

It is a cyclic number.

It is not a de Polignac number, because 26948557 - 2⁷ = 26948429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26948507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13474278 + 13474279.

It is an arithmetic number, because the mean of its divisors is an integer number (13474279).

Almost surely, 2^26948557 is an apocalyptic number.

It is an amenable number.

26948557 is a deficient number, since it is larger than the sum of its proper divisors (1).

26948557 is an equidigital number, since it uses as much as digits as its factorization.

26948557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 26948557 is about 5191.1999576206. The cubic root of 26948557 is about 299.8093492370.

The spelling of 26948557 in words is "twenty-six million, nine hundred forty-eight thousand, five hundred fifty-seven".