26540923 has 4 divisors (see below), whose sum is σ = 26719200. Its totient is φ = 26362648.

The previous prime is 26540879. The next prime is 26540939. The reversal of 26540923 is 32904562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32904562 = 2 ⋅16452281.

It is a cyclic number.

It is not a de Polignac number, because 26540923 - 2⁹ = 26540411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26547923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88915 + ... + 89212.

It is an arithmetic number, because the mean of its divisors is an integer number (6679800).

Almost surely, 2^26540923 is an apocalyptic number.

26540923 is a deficient number, since it is larger than the sum of its proper divisors (178277).

26540923 is a wasteful number, since it uses less digits than its factorization.

26540923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178276.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 26540923 is about 5151.7883302791. The cubic root of 26540923 is about 298.2899861770.

The spelling of 26540923 in words is "twenty-six million, five hundred forty thousand, nine hundred twenty-three".