28035457 has 2 divisors, whose sum is σ = 28035458. Its totient is φ = 28035456.

The previous prime is 28035407. The next prime is 28035461. The reversal of 28035457 is 75453082.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15046641 + 12988816 = 3879^2 + 3604^2 .

It is a cyclic number.

It is not a de Polignac number, because 28035457 - 2¹¹ = 28033409 is a prime.

It is not a weakly prime, because it can be changed into another prime (28035407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14017728 + 14017729.

It is an arithmetic number, because the mean of its divisors is an integer number (14017729).

Almost surely, 2^28035457 is an apocalyptic number.

It is an amenable number.

28035457 is a deficient number, since it is larger than the sum of its proper divisors (1).

28035457 is an equidigital number, since it uses as much as digits as its factorization.

28035457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 28035457 is about 5294.8519337183. The cubic root of 28035457 is about 303.7870197108.

The spelling of 28035457 in words is "twenty-eight million, thirty-five thousand, four hundred fifty-seven".