28333345 has 8 divisors (see below), whose sum is σ = 34790976. Its totient is φ = 22139376.

The previous prime is 28333307. The next prime is 28333367. The reversal of 28333345 is 54333382.

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 28333345 - 2¹³ = 28325153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65677 + ... + 66106.

It is an arithmetic number, because the mean of its divisors is an integer number (4348872).

Almost surely, 2^28333345 is an apocalyptic number.

It is an amenable number.

28333345 is a deficient number, since it is larger than the sum of its proper divisors (6457631).

28333345 is a wasteful number, since it uses less digits than its factorization.

28333345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131831.

The product of its digits is 25920, while the sum is 31.

The square root of 28333345 is about 5322.9075701162. The cubic root of 28333345 is about 304.8591843024.

The spelling of 28333345 in words is "twenty-eight million, three hundred thirty-three thousand, three hundred forty-five".