28648185 has 16 divisors (see below), whose sum is σ = 47316480. Its totient is φ = 14785920.

The previous prime is 28648183. The next prime is 28648187. The reversal of 28648185 is 58184682.

It is an interprime number because it is at equal distance from previous prime (28648183) and next prime (28648187).

It is not a de Polignac number, because 28648185 - 2¹ = 28648183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28648183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30340 + ... + 31269.

It is an arithmetic number, because the mean of its divisors is an integer number (2957280).

Almost surely, 2^28648185 is an apocalyptic number.

It is an amenable number.

28648185 is a deficient number, since it is larger than the sum of its proper divisors (18668295).

28648185 is a wasteful number, since it uses less digits than its factorization.

28648185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61648.

The product of its digits is 122880, while the sum is 42.

The square root of 28648185 is about 5352.3999290038. The cubic root of 28648185 is about 305.9842253391.

The spelling of 28648185 in words is "twenty-eight million, six hundred forty-eight thousand, one hundred eighty-five".