28059457 has 8 divisors (see below), whose sum is σ = 29111040. Its totient is φ = 27025440.

The previous prime is 28059407. The next prime is 28059463. The reversal of 28059457 is 75495082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28059457 - 2¹¹ = 28057409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28059407) 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 in 7 ways as a sum of consecutive naturals, for example, 1093 + ... + 7570.

It is an arithmetic number, because the mean of its divisors is an integer number (3638880).

Almost surely, 2^28059457 is an apocalyptic number.

It is an amenable number.

28059457 is a deficient number, since it is larger than the sum of its proper divisors (1051583).

28059457 is an equidigital number, since it uses as much as digits as its factorization.

28059457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8783.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 28059457 is about 5297.1178012198. The cubic root of 28059457 is about 303.8736815047.

The spelling of 28059457 in words is "twenty-eight million, fifty-nine thousand, four hundred fifty-seven".