28484801 has 4 divisors (see below), whose sum is σ = 28576704. Its totient is φ = 28392900.

The previous prime is 28484767. The next prime is 28484803. The reversal of 28484801 is 10848482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28484801 is a prime.

It is a super-2 number, since 2×28484801² = 1622767776019202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28484803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45485 + ... + 46106.

It is an arithmetic number, because the mean of its divisors is an integer number (7144176).

Almost surely, 2^28484801 is an apocalyptic number.

It is an amenable number.

28484801 is a deficient number, since it is larger than the sum of its proper divisors (91903).

28484801 is an equidigital number, since it uses as much as digits as its factorization.

28484801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91902.

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 28484801 is about 5337.1154194003. The cubic root of 28484801 is about 305.4014278894.

The spelling of 28484801 in words is "twenty-eight million, four hundred eighty-four thousand, eight hundred one".