28996001 has 2 divisors, whose sum is σ = 28996002. Its totient is φ = 28996000.

The previous prime is 28995997. The next prime is 28996103. The reversal of 28996001 is 10069982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25000000 + 3996001 = 5000^2 + 1999^2 .

It is a cyclic number.

It is not a de Polignac number, because 28996001 - 2² = 28995997 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28996601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14498000 + 14498001.

It is an arithmetic number, because the mean of its divisors is an integer number (14498001).

Almost surely, 2^28996001 is an apocalyptic number.

It is an amenable number.

28996001 is a deficient number, since it is larger than the sum of its proper divisors (1).

28996001 is an equidigital number, since it uses as much as digits as its factorization.

28996001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 28996001 is about 5384.7934965048. The cubic root of 28996001 is about 307.2175598562.

The spelling of 28996001 in words is "twenty-eight million, nine hundred ninety-six thousand, one".