26271493 has 2 divisors, whose sum is σ = 26271494. Its totient is φ = 26271492.

The previous prime is 26271481. The next prime is 26271521. The reversal of 26271493 is 39417262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15499969 + 10771524 = 3937^2 + 3282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26271493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26271463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13135746 + 13135747.

It is an arithmetic number, because the mean of its divisors is an integer number (13135747).

Almost surely, 2^26271493 is an apocalyptic number.

It is an amenable number.

26271493 is a deficient number, since it is larger than the sum of its proper divisors (1).

26271493 is an equidigital number, since it uses as much as digits as its factorization.

26271493 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 26271493 is about 5125.5724558336. The cubic root of 26271493 is about 297.2771883450.

The spelling of 26271493 in words is "twenty-six million, two hundred seventy-one thousand, four hundred ninety-three".