28488801 has 16 divisors (see below), whose sum is σ = 41542848. Its totient is φ = 17222400.

The previous prime is 28488797. The next prime is 28488827. The reversal of 28488801 is 10888482.

It is not a de Polignac number, because 28488801 - 2² = 28488797 is a prime.

It is a super-2 number, since 2×28488801² = 1623223564835202, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28488801.

It is not an unprimeable number, because it can be changed into a prime (28488301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16365 + ... + 18021.

It is an arithmetic number, because the mean of its divisors is an integer number (2596428).

Almost surely, 2^28488801 is an apocalyptic number.

It is an amenable number.

28488801 is a deficient number, since it is larger than the sum of its proper divisors (13054047).

28488801 is a wasteful number, since it uses less digits than its factorization.

28488801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192.

The product of its (nonzero) digits is 32768, while the sum is 39.

The square root of 28488801 is about 5337.4901405061. The cubic root of 28488801 is about 305.4157226301.

The spelling of 28488801 in words is "twenty-eight million, four hundred eighty-eight thousand, eight hundred one".