26949397 has 2 divisors, whose sum is σ = 26949398. Its totient is φ = 26949396.

The previous prime is 26949389. The next prime is 26949427. The reversal of 26949397 is 79394962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26946481 + 2916 = 5191^2 + 54^2 .

It is a cyclic number.

It is not a de Polignac number, because 26949397 - 2³ = 26949389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26949397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26949317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13474698 + 13474699.

It is an arithmetic number, because the mean of its divisors is an integer number (13474699).

Almost surely, 2^26949397 is an apocalyptic number.

It is an amenable number.

26949397 is a deficient number, since it is larger than the sum of its proper divisors (1).

26949397 is an equidigital number, since it uses as much as digits as its factorization.

26949397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 49.

The square root of 26949397 is about 5191.2808631397. The cubic root of 26949397 is about 299.8124642737.

The spelling of 26949397 in words is "twenty-six million, nine hundred forty-nine thousand, three hundred ninety-seven".