26540479 has 4 divisors (see below), whose sum is σ = 30331984. Its totient is φ = 22748976.

The previous prime is 26540471. The next prime is 26540483. The reversal of 26540479 is 97404562.

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

It is a cyclic number.

It is not a de Polignac number, because 26540479 - 2³ = 26540471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26540471) 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, 1895742 + ... + 1895755.

It is an arithmetic number, because the mean of its divisors is an integer number (7582996).

Almost surely, 2^26540479 is an apocalyptic number.

26540479 is a deficient number, since it is larger than the sum of its proper divisors (3791505).

26540479 is an equidigital number, since it uses as much as digits as its factorization.

26540479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791504.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 26540479 is about 5151.7452382663. The cubic root of 26540479 is about 298.2883228149.

The spelling of 26540479 in words is "twenty-six million, five hundred forty thousand, four hundred seventy-nine".