28455337 has 2 divisors, whose sum is σ = 28455338. Its totient is φ = 28455336.

The previous prime is 28455319. The next prime is 28455373. The reversal of 28455337 is 73355482.

Together with next prime (28455373) 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., 17505856 + 10949481 = 4184^2 + 3309^2 .

It is a cyclic number.

It is not a de Polignac number, because 28455337 - 2¹⁹ = 27931049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28455296 and 28455305.

It is not a weakly prime, because it can be changed into another prime (28455397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14227668 + 14227669.

It is an arithmetic number, because the mean of its divisors is an integer number (14227669).

Almost surely, 2^28455337 is an apocalyptic number.

It is an amenable number.

28455337 is a deficient number, since it is larger than the sum of its proper divisors (1).

28455337 is an equidigital number, since it uses as much as digits as its factorization.

28455337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 37.

The square root of 28455337 is about 5334.3544126726. The cubic root of 28455337 is about 305.2960915732.

The spelling of 28455337 in words is "twenty-eight million, four hundred fifty-five thousand, three hundred thirty-seven".