28716001 has 2 divisors, whose sum is σ = 28716002. Its totient is φ = 28716000.

The previous prime is 28715971. The next prime is 28716041. The reversal of 28716001 is 10061782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28037025 + 678976 = 5295^2 + 824^2 .

It is a cyclic number.

It is not a de Polignac number, because 28716001 - 2¹¹ = 28713953 is a prime.

It is not a weakly prime, because it can be changed into another prime (28716041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14358000 + 14358001.

It is an arithmetic number, because the mean of its divisors is an integer number (14358001).

Almost surely, 2^28716001 is an apocalyptic number.

It is an amenable number.

28716001 is a deficient number, since it is larger than the sum of its proper divisors (1).

28716001 is an equidigital number, since it uses as much as digits as its factorization.

28716001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 28716001 is about 5358.7312864147. The cubic root of 28716001 is about 306.2254770868.

Adding to 28716001 its reverse (10061782), we get a palindrome (38777783).

The spelling of 28716001 in words is "twenty-eight million, seven hundred sixteen thousand, one".