26361289 has 4 divisors (see below), whose sum is σ = 27507456. Its totient is φ = 25215124.

The previous prime is 26361281. The next prime is 26361301. The reversal of 26361289 is 98216362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26361289 - 2³ = 26361281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26361281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573049 + ... + 573094.

It is an arithmetic number, because the mean of its divisors is an integer number (6876864).

Almost surely, 2^26361289 is an apocalyptic number.

It is an amenable number.

26361289 is a deficient number, since it is larger than the sum of its proper divisors (1146167).

26361289 is a wasteful number, since it uses less digits than its factorization.

26361289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146166.

The product of its digits is 31104, while the sum is 37.

The square root of 26361289 is about 5134.3245904403. The cubic root of 26361289 is about 297.6155011352.

The spelling of 26361289 in words is "twenty-six million, three hundred sixty-one thousand, two hundred eighty-nine".