28074233 has 8 divisors (see below), whose sum is σ = 31682880. Its totient is φ = 24641680.

The previous prime is 28074223. The next prime is 28074271. The reversal of 28074233 is 33247082.

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 28074233 - 2²² = 23879929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28074196 and 28074205.

It is not an unprimeable number, because it can be changed into a prime (28074223) 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, 43685 + ... + 44322.

It is an arithmetic number, because the mean of its divisors is an integer number (3960360).

Almost surely, 2^28074233 is an apocalyptic number.

It is an amenable number.

28074233 is a deficient number, since it is larger than the sum of its proper divisors (3608647).

28074233 is a wasteful number, since it uses less digits than its factorization.

28074233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88047.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 28074233 is about 5298.5123383833. The cubic root of 28074233 is about 303.9270117076.

The spelling of 28074233 in words is "twenty-eight million, seventy-four thousand, two hundred thirty-three".