26961859 has 2 divisors, whose sum is σ = 26961860. Its totient is φ = 26961858.

The previous prime is 26961853. The next prime is 26961889. The reversal of 26961859 is 95816962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26961859 - 2⁵ = 26961827 is a prime.

It is a super-3 number, since 3×26961859³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26961853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13480929 + 13480930.

It is an arithmetic number, because the mean of its divisors is an integer number (13480930).

Almost surely, 2^26961859 is an apocalyptic number.

26961859 is a deficient number, since it is larger than the sum of its proper divisors (1).

26961859 is an equidigital number, since it uses as much as digits as its factorization.

26961859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 46.

The square root of 26961859 is about 5192.4810062243. The cubic root of 26961859 is about 299.8586704674.

It can be divided in two parts, 269 and 61859, that added together give a triangular number (62128 = T₃₅₂).

The spelling of 26961859 in words is "twenty-six million, nine hundred sixty-one thousand, eight hundred fifty-nine".