26323661 has 16 divisors (see below), whose sum is σ = 33809664. Its totient is φ = 19920384.

The previous prime is 26323651. The next prime is 26323663. The reversal of 26323661 is 16632362.

It is a cyclic number.

It is not a de Polignac number, because 26323661 - 2¹⁴ = 26307277 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26323663) 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 15 ways as a sum of consecutive naturals, for example, 4196 + ... + 8381.

It is an arithmetic number, because the mean of its divisors is an integer number (2113104).

Almost surely, 2^26323661 is an apocalyptic number.

It is an amenable number.

26323661 is a deficient number, since it is larger than the sum of its proper divisors (7486003).

26323661 is a wasteful number, since it uses less digits than its factorization.

26323661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12620.

The product of its digits is 7776, while the sum is 29.

The square root of 26323661 is about 5130.6589245437. The cubic root of 26323661 is about 297.4738286419.

The spelling of 26323661 in words is "twenty-six million, three hundred twenty-three thousand, six hundred sixty-one".