26797613 has 4 divisors (see below), whose sum is σ = 27057888. Its totient is φ = 26537340.

The previous prime is 26797607. The next prime is 26797649. The reversal of 26797613 is 31679762.

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: 31679762 = 2 ⋅15839881.

It is a cyclic number.

It is not a de Polignac number, because 26797613 - 2⁴ = 26797597 is a prime.

It is a super-2 number, since 2×26797613² = 1436224124995538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26790613) 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, 129983 + ... + 130188.

It is an arithmetic number, because the mean of its divisors is an integer number (6764472).

Almost surely, 2^26797613 is an apocalyptic number.

It is an amenable number.

26797613 is a deficient number, since it is larger than the sum of its proper divisors (260275).

26797613 is a wasteful number, since it uses less digits than its factorization.

26797613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260274.

The product of its digits is 95256, while the sum is 41.

The square root of 26797613 is about 5176.6410924460. The cubic root of 26797613 is about 299.2485377719.

The spelling of 26797613 in words is "twenty-six million, seven hundred ninety-seven thousand, six hundred thirteen".