26104661 has 12 divisors (see below), whose sum is σ = 28817376. Its totient is φ = 23629320.

The previous prime is 26104657. The next prime is 26104691. The reversal of 26104661 is 16640162.

It is a happy number.

It is not a de Polignac number, because 26104661 - 2² = 26104657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 26104661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26104691) 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 11 ways as a sum of consecutive naturals, for example, 53360 + ... + 53846.

It is an arithmetic number, because the mean of its divisors is an integer number (2401448).

Almost surely, 2^26104661 is an apocalyptic number.

It is an amenable number.

26104661 is a deficient number, since it is larger than the sum of its proper divisors (2712715).

26104661 is a wasteful number, since it uses less digits than its factorization.

26104661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 26104661 is about 5109.2720616542. The cubic root of 26104661 is about 296.6465846497.

The spelling of 26104661 in words is "twenty-six million, one hundred four thousand, six hundred sixty-one".