28323345 has 8 divisors (see below), whose sum is σ = 45317376. Its totient is φ = 15105776.

The previous prime is 28323331. The next prime is 28323353. The reversal of 28323345 is 54332382.

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 28323345 - 2⁸ = 28323089 is a prime.

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, 944097 + ... + 944126.

It is an arithmetic number, because the mean of its divisors is an integer number (5664672).

Almost surely, 2^28323345 is an apocalyptic number.

It is an amenable number.

28323345 is a deficient number, since it is larger than the sum of its proper divisors (16994031).

28323345 is a wasteful number, since it uses less digits than its factorization.

28323345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888231.

The product of its digits is 17280, while the sum is 30.

The square root of 28323345 is about 5321.9681509757. The cubic root of 28323345 is about 304.8233143105.

The spelling of 28323345 in words is "twenty-eight million, three hundred twenty-three thousand, three hundred forty-five".