28323801 has 36 divisors (see below), whose sum is σ = 46475520. Its totient is φ = 16592400.

The previous prime is 28323797. The next prime is 28323803. The reversal of 28323801 is 10832382.

28323801 is a `hidden beast` number, since 283 + 2 + 380 + 1 = 666.

It is not a de Polignac number, because 28323801 - 2² = 28323797 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28323803) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33340 + ... + 34178.

Almost surely, 2^28323801 is an apocalyptic number.

It is an amenable number.

28323801 is a deficient number, since it is larger than the sum of its proper divisors (18151719).

28323801 is a wasteful number, since it uses less digits than its factorization.

28323801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898 (or 884 counting only the distinct ones).

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

The square root of 28323801 is about 5322.0109920969. The cubic root of 28323801 is about 304.8249501658.

The spelling of 28323801 in words is "twenty-eight million, three hundred twenty-three thousand, eight hundred one".