26716513 has 4 divisors (see below), whose sum is σ = 27578368. Its totient is φ = 25854660.

The previous prime is 26716471. The next prime is 26716517. The reversal of 26716513 is 31561762.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31561762 = 2 ⋅15780881.

It is a cyclic number.

It is not a de Polignac number, because 26716513 - 2¹⁷ = 26585441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 861823 = 26716513 / (2 + 6 + 7 + 1 + 6 + 5 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26716517) 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 3 ways as a sum of consecutive naturals, for example, 430881 + ... + 430942.

It is an arithmetic number, because the mean of its divisors is an integer number (6894592).

Almost surely, 2^26716513 is an apocalyptic number.

It is an amenable number.

26716513 is a deficient number, since it is larger than the sum of its proper divisors (861855).

26716513 is an equidigital number, since it uses as much as digits as its factorization.

26716513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861854.

The product of its digits is 7560, while the sum is 31.

The square root of 26716513 is about 5168.8018921216. The cubic root of 26716513 is about 298.9463518994.

The spelling of 26716513 in words is "twenty-six million, seven hundred sixteen thousand, five hundred thirteen".