28823845 has 8 divisors (see below), whose sum is σ = 34634880. Its totient is φ = 23028240.

The previous prime is 28823843. The next prime is 28823849. The reversal of 28823845 is 54832882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28823845 - 2¹ = 28823843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28823798 and 28823807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28823843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760 + ... + 7630.

It is an arithmetic number, because the mean of its divisors is an integer number (4329360).

Almost surely, 2^28823845 is an apocalyptic number.

It is an amenable number.

28823845 is a deficient number, since it is larger than the sum of its proper divisors (5811035).

28823845 is an equidigital number, since it uses as much as digits as its factorization.

28823845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7715.

The product of its digits is 122880, while the sum is 40.

The square root of 28823845 is about 5368.7843130452. The cubic root of 28823845 is about 306.6083452157.

The spelling of 28823845 in words is "twenty-eight million, eight hundred twenty-three thousand, eight hundred forty-five".