28233107 has 16 divisors (see below), whose sum is σ = 35965440. Its totient is φ = 21575808.

The previous prime is 28233103. The next prime is 28233113. The reversal of 28233107 is 70133282.

28233107 = 219² + 220² + ... + 456².

It is a cyclic number.

It is not a de Polignac number, because 28233107 - 2² = 28233103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28233103) 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, 3983 + ... + 8504.

It is an arithmetic number, because the mean of its divisors is an integer number (2247840).

Almost surely, 2^28233107 is an apocalyptic number.

28233107 is a deficient number, since it is larger than the sum of its proper divisors (7732333).

28233107 is a wasteful number, since it uses less digits than its factorization.

28233107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12530.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 28233107 is about 5313.4835089610. The cubic root of 28233107 is about 304.4992481847.

Adding to 28233107 its reverse (70133282), we get a palindrome (98366389).

The spelling of 28233107 in words is "twenty-eight million, two hundred thirty-three thousand, one hundred seven".