28301823 has 24 divisors (see below), whose sum is σ = 44967936. Its totient is φ = 17010000.

The previous prime is 28301813. The next prime is 28301827. The reversal of 28301823 is 32810382.

It is not a de Polignac number, because 28301823 - 2¹² = 28297727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28301827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11448 + ... + 13698.

It is an arithmetic number, because the mean of its divisors is an integer number (1873664).

Almost surely, 2^28301823 is an apocalyptic number.

28301823 is a deficient number, since it is larger than the sum of its proper divisors (16666113).

28301823 is a wasteful number, since it uses less digits than its factorization.

28301823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395 (or 2392 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28301823 is about 5319.9457704003. The cubic root of 28301823 is about 304.7460862647.

The spelling of 28301823 in words is "twenty-eight million, three hundred one thousand, eight hundred twenty-three".