26819249 has 2 divisors, whose sum is σ = 26819250. Its totient is φ = 26819248.

The previous prime is 26819231. The next prime is 26819263. The reversal of 26819249 is 94291862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17698849 + 9120400 = 4207^2 + 3020^2 .

It is a cyclic number.

It is not a de Polignac number, because 26819249 - 2¹² = 26815153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (26819269) 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 as a sum of consecutive naturals, namely, 13409624 + 13409625.

It is an arithmetic number, because the mean of its divisors is an integer number (13409625).

Almost surely, 2^26819249 is an apocalyptic number.

It is an amenable number.

26819249 is a deficient number, since it is larger than the sum of its proper divisors (1).

26819249 is an equidigital number, since it uses as much as digits as its factorization.

26819249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 26819249 is about 5178.7304428788. The cubic root of 26819249 is about 299.3290524016.

The spelling of 26819249 in words is "twenty-six million, eight hundred nineteen thousand, two hundred forty-nine".