28750727 has 2 divisors, whose sum is σ = 28750728. Its totient is φ = 28750726.

The previous prime is 28750679. The next prime is 28750741. The reversal of 28750727 is 72705782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28750727 - 2⁶ = 28750663 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 (28750427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14375363 + 14375364.

It is an arithmetic number, because the mean of its divisors is an integer number (14375364).

Almost surely, 2^28750727 is an apocalyptic number.

28750727 is a deficient number, since it is larger than the sum of its proper divisors (1).

28750727 is an equidigital number, since it uses as much as digits as its factorization.

28750727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 28750727 is about 5361.9704400528. The cubic root of 28750727 is about 306.3488659280.

The spelling of 28750727 in words is "twenty-eight million, seven hundred fifty thousand, seven hundred twenty-seven".