28844797 has 2 divisors, whose sum is σ = 28844798. Its totient is φ = 28844796.

The previous prime is 28844791. The next prime is 28844819. The reversal of 28844797 is 79744882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26429881 + 2414916 = 5141^2 + 1554^2 .

It is a cyclic number.

It is not a de Polignac number, because 28844797 - 2³ = 28844789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28844797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28844791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14422398 + 14422399.

It is an arithmetic number, because the mean of its divisors is an integer number (14422399).

Almost surely, 2^28844797 is an apocalyptic number.

It is an amenable number.

28844797 is a deficient number, since it is larger than the sum of its proper divisors (1).

28844797 is an equidigital number, since it uses as much as digits as its factorization.

28844797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 49.

The square root of 28844797 is about 5370.7352383077. The cubic root of 28844797 is about 306.6826182366.

The spelling of 28844797 in words is "twenty-eight million, eight hundred forty-four thousand, seven hundred ninety-seven".