28935967 has 2 divisors, whose sum is σ = 28935968. Its totient is φ = 28935966.

The previous prime is 28935953. The next prime is 28935971. The reversal of 28935967 is 76953982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28935967 - 2⁷ = 28935839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28935967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28935937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14467983 + 14467984.

It is an arithmetic number, because the mean of its divisors is an integer number (14467984).

Almost surely, 2^28935967 is an apocalyptic number.

28935967 is a deficient number, since it is larger than the sum of its proper divisors (1).

28935967 is an equidigital number, since it uses as much as digits as its factorization.

28935967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 28935967 is about 5379.2162068465. The cubic root of 28935967 is about 307.0053898830.

The spelling of 28935967 in words is "twenty-eight million, nine hundred thirty-five thousand, nine hundred sixty-seven".