26479913 has 4 divisors (see below), whose sum is σ = 26979588. Its totient is φ = 25980240.

The previous prime is 26479909. The next prime is 26479919. The reversal of 26479913 is 31997462.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9406489 + 17073424 = 3067^2 + 4132^2 .

It is a cyclic number.

It is not a de Polignac number, because 26479913 - 2² = 26479909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26479919) 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, 249758 + ... + 249863.

It is an arithmetic number, because the mean of its divisors is an integer number (6744897).

Almost surely, 2^26479913 is an apocalyptic number.

It is an amenable number.

26479913 is a deficient number, since it is larger than the sum of its proper divisors (499675).

26479913 is an equidigital number, since it uses as much as digits as its factorization.

26479913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499674.

The product of its digits is 81648, while the sum is 41.

The square root of 26479913 is about 5145.8636787229. The cubic root of 26479913 is about 298.0612496656.

The spelling of 26479913 in words is "twenty-six million, four hundred seventy-nine thousand, nine hundred thirteen".