28053147 has 8 divisors (see below), whose sum is σ = 37433344. Its totient is φ = 18687528.

The previous prime is 28053131. The next prime is 28053167. The reversal of 28053147 is 74135082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28053147 - 2⁴ = 28053131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28053127) 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 in 7 ways as a sum of consecutive naturals, for example, 2178 + ... + 7800.

It is an arithmetic number, because the mean of its divisors is an integer number (4679168).

Almost surely, 2^28053147 is an apocalyptic number.

28053147 is a deficient number, since it is larger than the sum of its proper divisors (9380197).

28053147 is a wasteful number, since it uses less digits than its factorization.

28053147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7289.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 28053147 is about 5296.5221608146. The cubic root of 28053147 is about 303.8509014644.

The spelling of 28053147 in words is "twenty-eight million, fifty-three thousand, one hundred forty-seven".