26307881 has 2 divisors, whose sum is σ = 26307882. Its totient is φ = 26307880.

The previous prime is 26307863. The next prime is 26307899. The reversal of 26307881 is 18870362.

It is a balanced prime because it is at equal distance from previous prime (26307863) and next prime (26307899).

It can be written as a sum of positive squares in only one way, i.e., 20976400 + 5331481 = 4580^2 + 2309^2 .

It is a cyclic number.

It is not a de Polignac number, because 26307881 - 2⁶ = 26307817 is a prime.

It is a super-2 number, since 2×26307881² = 1384209205420322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26307811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13153940 + 13153941.

It is an arithmetic number, because the mean of its divisors is an integer number (13153941).

Almost surely, 2^26307881 is an apocalyptic number.

It is an amenable number.

26307881 is a deficient number, since it is larger than the sum of its proper divisors (1).

26307881 is an equidigital number, since it uses as much as digits as its factorization.

26307881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 26307881 is about 5129.1208798390. The cubic root of 26307881 is about 297.4143754715.

The spelling of 26307881 in words is "twenty-six million, three hundred seven thousand, eight hundred eighty-one".