28376287 has 2 divisors, whose sum is σ = 28376288. Its totient is φ = 28376286.

The previous prime is 28376263. The next prime is 28376311. The reversal of 28376287 is 78267382.

It is a balanced prime because it is at equal distance from previous prime (28376263) and next prime (28376311).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28376287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28376207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14188143 + 14188144.

It is an arithmetic number, because the mean of its divisors is an integer number (14188144).

Almost surely, 2^28376287 is an apocalyptic number.

28376287 is a deficient number, since it is larger than the sum of its proper divisors (1).

28376287 is an equidigital number, since it uses as much as digits as its factorization.

28376287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 43.

The square root of 28376287 is about 5326.9397406015. The cubic root of 28376287 is about 305.0131213561.

The spelling of 28376287 in words is "twenty-eight million, three hundred seventy-six thousand, two hundred eighty-seven".