28554497 has 2 divisors, whose sum is σ = 28554498. Its totient is φ = 28554496.

The previous prime is 28554479. The next prime is 28554551. The reversal of 28554497 is 79445582.

It is a happy number.

Together with previous prime (28554479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21242881 + 7311616 = 4609^2 + 2704^2 .

It is a cyclic number.

It is not a de Polignac number, because 28554497 - 2¹⁸ = 28292353 is a prime.

It is not a weakly prime, because it can be changed into another prime (28554437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14277248 + 14277249.

It is an arithmetic number, because the mean of its divisors is an integer number (14277249).

Almost surely, 2^28554497 is an apocalyptic number.

It is an amenable number.

28554497 is a deficient number, since it is larger than the sum of its proper divisors (1).

28554497 is an equidigital number, since it uses as much as digits as its factorization.

28554497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 44.

The square root of 28554497 is about 5343.6408000538. The cubic root of 28554497 is about 305.6503082352.

The spelling of 28554497 in words is "twenty-eight million, five hundred fifty-four thousand, four hundred ninety-seven".