26348821 has 2 divisors, whose sum is σ = 26348822. Its totient is φ = 26348820.

The previous prime is 26348813. The next prime is 26348837. The reversal of 26348821 is 12884362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23912100 + 2436721 = 4890^2 + 1561^2 .

It is a cyclic number.

It is not a de Polignac number, because 26348821 - 2³ = 26348813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26348851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13174410 + 13174411.

It is an arithmetic number, because the mean of its divisors is an integer number (13174411).

Almost surely, 2^26348821 is an apocalyptic number.

It is an amenable number.

26348821 is a deficient number, since it is larger than the sum of its proper divisors (1).

26348821 is an equidigital number, since it uses as much as digits as its factorization.

26348821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 34.

The square root of 26348821 is about 5133.1102657161. The cubic root of 26348821 is about 297.5685730402.

The spelling of 26348821 in words is "twenty-six million, three hundred forty-eight thousand, eight hundred twenty-one".