28632233 has 8 divisors (see below), whose sum is σ = 34647552. Its totient is φ = 23098176.

The previous prime is 28632223. The next prime is 28632257. The reversal of 28632233 is 33223682.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28632233 - 2¹⁰ = 28631209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28632196 and 28632205.

It is not an unprimeable number, because it can be changed into a prime (28632203) 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, 120185 + ... + 120422.

It is an arithmetic number, because the mean of its divisors is an integer number (4330944).

Almost surely, 2^28632233 is an apocalyptic number.

It is an amenable number.

28632233 is a deficient number, since it is larger than the sum of its proper divisors (6015319).

28632233 is a wasteful number, since it uses less digits than its factorization.

28632233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240631.

The product of its digits is 10368, while the sum is 29.

The square root of 28632233 is about 5350.9095488524. The cubic root of 28632233 is about 305.9274216637.

The spelling of 28632233 in words is "twenty-eight million, six hundred thirty-two thousand, two hundred thirty-three".