97889028 has 24 divisors (see below), whose sum is σ = 229608960. Its totient is φ = 32458080.

The previous prime is 97889023. The next prime is 97889059. The reversal of 97889028 is 82098879.

It is not an unprimeable number, because it can be changed into a prime (97889023) 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 7 ways as a sum of consecutive naturals, for example, 19063 + ... + 23646.

It is an arithmetic number, because the mean of its divisors is an integer number (9567040).

Almost surely, 2^97889028 is an apocalyptic number.

It is an amenable number.

97889028 is an abundant number, since it is smaller than the sum of its proper divisors (131719932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97889028 is a wasteful number, since it uses less digits than its factorization.

97889028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42907 (or 42905 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 97889028 is about 9893.8884165933. Note that the first 3 decimals coincide. The cubic root of 97889028 is about 460.8695398945.

The spelling of 97889028 in words is "ninety-seven million, eight hundred eighty-nine thousand, twenty-eight".