26793397 has 2 divisors, whose sum is σ = 26793398. Its totient is φ = 26793396.

The previous prime is 26793391. The next prime is 26793449. The reversal of 26793397 is 79339762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25948836 + 844561 = 5094^2 + 919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26793397 is a prime.

It is a super-2 number, since 2×26793397² = 1435772245599218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26793391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13396698 + 13396699.

It is an arithmetic number, because the mean of its divisors is an integer number (13396699).

Almost surely, 2^26793397 is an apocalyptic number.

26793397 is the 2989-th hex number.

It is an amenable number.

26793397 is a deficient number, since it is larger than the sum of its proper divisors (1).

26793397 is an equidigital number, since it uses as much as digits as its factorization.

26793397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 428652, while the sum is 46.

The square root of 26793397 is about 5176.2338625684. The cubic root of 26793397 is about 299.2328436128.

The spelling of 26793397 in words is "twenty-six million, seven hundred ninety-three thousand, three hundred ninety-seven".