28732667 has 2 divisors, whose sum is σ = 28732668. Its totient is φ = 28732666.

The previous prime is 28732657. The next prime is 28732673. The reversal of 28732667 is 76623782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28732667 - 2⁸ = 28732411 is a prime.

It is not a weakly prime, because it can be changed into another prime (28732657) 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, 14366333 + 14366334.

It is an arithmetic number, because the mean of its divisors is an integer number (14366334).

Almost surely, 2^28732667 is an apocalyptic number.

28732667 is a deficient number, since it is larger than the sum of its proper divisors (1).

28732667 is an equidigital number, since it uses as much as digits as its factorization.

28732667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 41.

The square root of 28732667 is about 5360.2860931111. The cubic root of 28732667 is about 306.2847073257.

The spelling of 28732667 in words is "twenty-eight million, seven hundred thirty-two thousand, six hundred sixty-seven".