28034497 has 2 divisors, whose sum is σ = 28034498. Its totient is φ = 28034496.

The previous prime is 28034491. The next prime is 28034507. The reversal of 28034497 is 79443082.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25847056 + 2187441 = 5084^2 + 1479^2 .

It is a cyclic number.

It is not a de Polignac number, because 28034497 - 2²³ = 19645889 is a prime.

It is not a weakly prime, because it can be changed into another prime (28034491) 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, 14017248 + 14017249.

It is an arithmetic number, because the mean of its divisors is an integer number (14017249).

Almost surely, 2^28034497 is an apocalyptic number.

It is an amenable number.

28034497 is a deficient number, since it is larger than the sum of its proper divisors (1).

28034497 is an equidigital number, since it uses as much as digits as its factorization.

28034497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 28034497 is about 5294.7612788491. The cubic root of 28034497 is about 303.7835522105.

The spelling of 28034497 in words is "twenty-eight million, thirty-four thousand, four hundred ninety-seven".