28950001 has 8 divisors (see below), whose sum is σ = 29963264. Its totient is φ = 27941760.

The previous prime is 28949971. The next prime is 28950007. The reversal of 28950001 is 10005982.

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 28950001 - 2⁵ = 28949969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28950007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13345 + ... + 15361.

It is an arithmetic number, because the mean of its divisors is an integer number (3745408).

Almost surely, 2^28950001 is an apocalyptic number.

It is an amenable number.

28950001 is a deficient number, since it is larger than the sum of its proper divisors (1013263).

28950001 is a wasteful number, since it uses less digits than its factorization.

28950001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 28950001 is about 5380.5205138537. The cubic root of 28950001 is about 307.0550145973.

Adding to 28950001 its reverse (10005982), we get a palindrome (38955983).

The spelling of 28950001 in words is "twenty-eight million, nine hundred fifty thousand, one".