28150547 has 2 divisors, whose sum is σ = 28150548. Its totient is φ = 28150546.

The previous prime is 28150543. The next prime is 28150567. The reversal of 28150547 is 74505182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28150547 - 2² = 28150543 is a prime.

It is not a weakly prime, because it can be changed into another prime (28150541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14075273 + 14075274.

It is an arithmetic number, because the mean of its divisors is an integer number (14075274).

Almost surely, 2^28150547 is an apocalyptic number.

28150547 is a deficient number, since it is larger than the sum of its proper divisors (1).

28150547 is an equidigital number, since it uses as much as digits as its factorization.

28150547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 28150547 is about 5305.7089064516. The cubic root of 28150547 is about 304.2021501441.

The spelling of 28150547 in words is "twenty-eight million, one hundred fifty thousand, five hundred forty-seven".