28627301 has 2 divisors, whose sum is σ = 28627302. Its totient is φ = 28627300.

The previous prime is 28627297. The next prime is 28627327. The reversal of 28627301 is 10372682.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25908100 + 2719201 = 5090^2 + 1649^2 .

It is a cyclic number.

It is not a de Polignac number, because 28627301 - 2² = 28627297 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28627351) 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, 14313650 + 14313651.

It is an arithmetic number, because the mean of its divisors is an integer number (14313651).

Almost surely, 2^28627301 is an apocalyptic number.

It is an amenable number.

28627301 is a deficient number, since it is larger than the sum of its proper divisors (1).

28627301 is an equidigital number, since it uses as much as digits as its factorization.

28627301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 28627301 is about 5350.4486727750. The cubic root of 28627301 is about 305.9098549737.

Adding to 28627301 its reverse (10372682), we get a palindrome (38999983).

The spelling of 28627301 in words is "twenty-eight million, six hundred twenty-seven thousand, three hundred one".