28303161 has 8 divisors (see below), whose sum is σ = 38658144. Its totient is φ = 18408480.

The previous prime is 28303139. The next prime is 28303189. The reversal of 28303161 is 16130382.

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

It is not a de Polignac number, because 28303161 - 2¹⁴ = 28286777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28303361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114931 + ... + 115176.

It is an arithmetic number, because the mean of its divisors is an integer number (4832268).

Almost surely, 2^28303161 is an apocalyptic number.

It is an amenable number.

28303161 is a deficient number, since it is larger than the sum of its proper divisors (10354983).

28303161 is a wasteful number, since it uses less digits than its factorization.

28303161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230151.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 28303161 is about 5320.0715220756. The cubic root of 28303161 is about 304.7508885918.

The spelling of 28303161 in words is "twenty-eight million, three hundred three thousand, one hundred sixty-one".