26719481 has 2 divisors, whose sum is σ = 26719482. Its totient is φ = 26719480.

The previous prime is 26719477. The next prime is 26719487. The reversal of 26719481 is 18491762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20394256 + 6325225 = 4516^2 + 2515^2 .

It is a cyclic number.

It is not a de Polignac number, because 26719481 - 2² = 26719477 is a prime.

It is a super-2 number, since 2×26719481² = 1427861329818722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26719487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13359740 + 13359741.

It is an arithmetic number, because the mean of its divisors is an integer number (13359741).

Almost surely, 2^26719481 is an apocalyptic number.

It is an amenable number.

26719481 is a deficient number, since it is larger than the sum of its proper divisors (1).

26719481 is an equidigital number, since it uses as much as digits as its factorization.

26719481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 26719481 is about 5169.0889913020. The cubic root of 26719481 is about 298.9574217063.

The spelling of 26719481 in words is "twenty-six million, seven hundred nineteen thousand, four hundred eighty-one".