5278769 has 2 divisors, whose sum is σ = 5278770. Its totient is φ = 5278768.

The previous prime is 5278739. The next prime is 5278771. The reversal of 5278769 is 9678725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5230369 + 48400 = 2287^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 5278769 - 2¹² = 5274673 is a prime.

It is a super-2 number, since 2×5278769² = 55730804310722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 5278771, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5278739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639384 + 2639385.

It is an arithmetic number, because the mean of its divisors is an integer number (2639385).

Almost surely, 2^5278769 is an apocalyptic number.

It is an amenable number.

5278769 is a deficient number, since it is larger than the sum of its proper divisors (1).

5278769 is an equidigital number, since it uses as much as digits as its factorization.

5278769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 5278769 is about 2297.5571810077. The cubic root of 5278769 is about 174.1182201840.

Subtracting from 5278769 its sum of digits (44), we obtain a palindrome (5278725).

The spelling of 5278769 in words is "five million, two hundred seventy-eight thousand, seven hundred sixty-nine".