28236001 has 8 divisors (see below), whose sum is σ = 28551744. Its totient is φ = 27922320.

The previous prime is 28235989. The next prime is 28236007. The reversal of 28236001 is 10063282.

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 28236001 - 2⁵ = 28235969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28236007) 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, 50415 + ... + 50971.

It is an arithmetic number, because the mean of its divisors is an integer number (3568968).

Almost surely, 2^28236001 is an apocalyptic number.

It is an amenable number.

28236001 is a deficient number, since it is larger than the sum of its proper divisors (315743).

28236001 is a wasteful number, since it uses less digits than its factorization.

28236001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28236001 is about 5313.7558280373. The cubic root of 28236001 is about 304.5096519365.

Adding to 28236001 its reverse (10063282), we get a palindrome (38299283).

The spelling of 28236001 in words is "twenty-eight million, two hundred thirty-six thousand, one".