28365001 has 8 divisors (see below), whose sum is σ = 32808384. Its totient is φ = 24019440.

The previous prime is 28364971. The next prime is 28365019. The reversal of 28365001 is 10056382.

It is a happy number.

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 28365001 - 2⁷ = 28364873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28365041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23830 + ... + 24991.

It is an arithmetic number, because the mean of its divisors is an integer number (4101048).

Almost surely, 2^28365001 is an apocalyptic number.

It is an amenable number.

28365001 is a deficient number, since it is larger than the sum of its proper divisors (4443383).

28365001 is an equidigital number, since it uses as much as digits as its factorization.

28365001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48911.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 28365001 is about 5325.8803028232. The cubic root of 28365001 is about 304.9726787316.

The spelling of 28365001 in words is "twenty-eight million, three hundred sixty-five thousand, one".