26109923 has 4 divisors (see below), whose sum is σ = 29839920. Its totient is φ = 22379928.

The previous prime is 26109917. The next prime is 26109929. The reversal of 26109923 is 32990162.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (26109917) and next prime (26109929).

It is a cyclic number.

It is not a de Polignac number, because 26109923 - 2¹⁴ = 26093539 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 26109923.

It is not an unprimeable number, because it can be changed into a prime (26109929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1864988 + ... + 1865001.

It is an arithmetic number, because the mean of its divisors is an integer number (7459980).

Almost surely, 2^26109923 is an apocalyptic number.

26109923 is a deficient number, since it is larger than the sum of its proper divisors (3729997).

26109923 is an equidigital number, since it uses as much as digits as its factorization.

26109923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729996.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 26109923 is about 5109.7869818614. The cubic root of 26109923 is about 296.6665153108. Note that the first 3 decimals are identical.

The spelling of 26109923 in words is "twenty-six million, one hundred nine thousand, nine hundred twenty-three".