28633148 has 12 divisors (see below), whose sum is σ = 50271312. Its totient is φ = 14269920.

The previous prime is 28633147. The next prime is 28633223. The reversal of 28633148 is 84133682.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28633147) 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 3 ways as a sum of consecutive naturals, for example, 10265 + ... + 12752.

It is an arithmetic number, because the mean of its divisors is an integer number (4189276).

Almost surely, 2^28633148 is an apocalyptic number.

It is an amenable number.

28633148 is a deficient number, since it is larger than the sum of its proper divisors (21638164).

28633148 is a wasteful number, since it uses less digits than its factorization.

28633148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23332 (or 23330 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 28633148 is about 5350.9950476524. The cubic root of 28633148 is about 305.9306804689.

The spelling of 28633148 in words is "twenty-eight million, six hundred thirty-three thousand, one hundred forty-eight".