28960709 has 2 divisors, whose sum is σ = 28960710. Its totient is φ = 28960708.

The previous prime is 28960697. The next prime is 28960721. The reversal of 28960709 is 90706982.

It is a balanced prime because it is at equal distance from previous prime (28960697) and next prime (28960721).

It can be written as a sum of positive squares in only one way, i.e., 28058209 + 902500 = 5297^2 + 950^2 .

It is a cyclic number.

It is not a de Polignac number, because 28960709 - 2⁸ = 28960453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28960739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14480354 + 14480355.

It is an arithmetic number, because the mean of its divisors is an integer number (14480355).

Almost surely, 2^28960709 is an apocalyptic number.

It is an amenable number.

28960709 is a deficient number, since it is larger than the sum of its proper divisors (1).

28960709 is an equidigital number, since it uses as much as digits as its factorization.

28960709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 28960709 is about 5381.5154928700. The cubic root of 28960709 is about 307.0928676737.

The spelling of 28960709 in words is "twenty-eight million, nine hundred sixty thousand, seven hundred nine".