28452497 has 2 divisors, whose sum is σ = 28452498. Its totient is φ = 28452496.

The previous prime is 28452493. The next prime is 28452503. The reversal of 28452497 is 79425482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26790976 + 1661521 = 5176^2 + 1289^2 .

It is a cyclic number.

It is not a de Polignac number, because 28452497 - 2² = 28452493 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28452491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14226248 + 14226249.

It is an arithmetic number, because the mean of its divisors is an integer number (14226249).

Almost surely, 2^28452497 is an apocalyptic number.

It is an amenable number.

28452497 is a deficient number, since it is larger than the sum of its proper divisors (1).

28452497 is an equidigital number, since it uses as much as digits as its factorization.

28452497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 41.

The square root of 28452497 is about 5334.0882069947. The cubic root of 28452497 is about 305.2859344892.

The spelling of 28452497 in words is "twenty-eight million, four hundred fifty-two thousand, four hundred ninety-seven".