26834861 has 2 divisors, whose sum is σ = 26834862. Its totient is φ = 26834860.

The previous prime is 26834849. The next prime is 26834867. The reversal of 26834861 is 16843862.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24255625 + 2579236 = 4925^2 + 1606^2 .

It is a cyclic number.

It is not a de Polignac number, because 26834861 - 2²² = 22640557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26834867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13417430 + 13417431.

It is an arithmetic number, because the mean of its divisors is an integer number (13417431).

Almost surely, 2^26834861 is an apocalyptic number.

It is an amenable number.

26834861 is a deficient number, since it is larger than the sum of its proper divisors (1).

26834861 is an equidigital number, since it uses as much as digits as its factorization.

26834861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 26834861 is about 5180.2375428160. The cubic root of 26834861 is about 299.3871228654.

Subtracting from 26834861 its reverse (16843862), we obtain a palindrome (9990999).

The spelling of 26834861 in words is "twenty-six million, eight hundred thirty-four thousand, eight hundred sixty-one".