28060657 has 2 divisors, whose sum is σ = 28060658. Its totient is φ = 28060656.

The previous prime is 28060651. The next prime is 28060699. The reversal of 28060657 is 75606082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15358561 + 12702096 = 3919^2 + 3564^2 .

It is a cyclic number.

It is not a de Polignac number, because 28060657 - 2¹¹ = 28058609 is a prime.

It is not a weakly prime, because it can be changed into another prime (28060651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14030328 + 14030329.

It is an arithmetic number, because the mean of its divisors is an integer number (14030329).

Almost surely, 2^28060657 is an apocalyptic number.

It is an amenable number.

28060657 is a deficient number, since it is larger than the sum of its proper divisors (1).

28060657 is an equidigital number, since it uses as much as digits as its factorization.

28060657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 28060657 is about 5297.2310691530. The cubic root of 28060657 is about 303.8780132970.

The spelling of 28060657 in words is "twenty-eight million, sixty thousand, six hundred fifty-seven".