28080801 has 24 divisors (see below), whose sum is σ = 47121984. Its totient is φ = 15780960.

The previous prime is 28080799. The next prime is 28080847. The reversal of 28080801 is 10808082.

It is not a de Polignac number, because 28080801 - 2¹ = 28080799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28080851) 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 in 23 ways as a sum of consecutive naturals, for example, 190 + ... + 7496.

It is an arithmetic number, because the mean of its divisors is an integer number (1963416).

Almost surely, 2^28080801 is an apocalyptic number.

28080801 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28080801 is a deficient number, since it is larger than the sum of its proper divisors (19041183).

28080801 is a wasteful number, since it uses less digits than its factorization.

28080801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381 (or 7378 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 28080801 is about 5299.1320987498. The cubic root of 28080801 is about 303.9507112207.

Adding to 28080801 its reverse (10808082), we get a palindrome (38888883).

The spelling of 28080801 in words is "twenty-eight million, eighty thousand, eight hundred one".