28882197 has 16 divisors (see below), whose sum is σ = 43785280. Its totient is φ = 18806256.

The previous prime is 28882171. The next prime is 28882207. The reversal of 28882197 is 79128882.

It is a happy number.

It is not a de Polignac number, because 28882197 - 2⁷ = 28882069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28884197) 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 15 ways as a sum of consecutive naturals, for example, 11278 + ... + 13599.

It is an arithmetic number, because the mean of its divisors is an integer number (2736580).

Almost surely, 2^28882197 is an apocalyptic number.

28882197 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

28882197 is a deficient number, since it is larger than the sum of its proper divisors (14903083).

28882197 is a wasteful number, since it uses less digits than its factorization.

28882197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24929 (or 24923 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 28882197 is about 5374.2159428144. The cubic root of 28882197 is about 306.8151086381.

The spelling of 28882197 in words is "twenty-eight million, eight hundred eighty-two thousand, one hundred ninety-seven".