28768801 has 2 divisors, whose sum is σ = 28768802. Its totient is φ = 28768800.

The previous prime is 28768799. The next prime is 28768823. The reversal of 28768801 is 10886782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27720225 + 1048576 = 5265^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 28768801 - 2¹ = 28768799 is a prime.

Together with 28768799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28768891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14384400 + 14384401.

It is an arithmetic number, because the mean of its divisors is an integer number (14384401).

Almost surely, 2^28768801 is an apocalyptic number.

It is an amenable number.

28768801 is a deficient number, since it is larger than the sum of its proper divisors (1).

28768801 is an equidigital number, since it uses as much as digits as its factorization.

28768801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 28768801 is about 5363.6555631398. The cubic root of 28768801 is about 306.4130473723.

The spelling of 28768801 in words is "twenty-eight million, seven hundred sixty-eight thousand, eight hundred one".