28882633 has 4 divisors (see below), whose sum is σ = 31104388. Its totient is φ = 26660880.

The previous prime is 28882621. The next prime is 28882657. The reversal of 28882633 is 33628882.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11309769 + 17572864 = 3363^2 + 4192^2 .

It is a cyclic number.

It is not a de Polignac number, because 28882633 - 2¹³ = 28874441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28882613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110858 + ... + 1110883.

It is an arithmetic number, because the mean of its divisors is an integer number (7776097).

Almost surely, 2^28882633 is an apocalyptic number.

It is an amenable number.

28882633 is a deficient number, since it is larger than the sum of its proper divisors (2221755).

28882633 is a wasteful number, since it uses less digits than its factorization.

28882633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221754.

The product of its digits is 110592, while the sum is 40.

The square root of 28882633 is about 5374.2565067179. The cubic root of 28882633 is about 306.8166525040.

The spelling of 28882633 in words is "twenty-eight million, eight hundred eighty-two thousand, six hundred thirty-three".