97989089 has 16 divisors (see below), whose sum is σ = 109278720. Its totient is φ = 87120000.

The previous prime is 97989083. The next prime is 97989091. The reversal of 97989089 is 98098979.

It is not a de Polignac number, because 97989089 - 2¹² = 97984993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97989083) 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, 98384 + ... + 99374.

It is an arithmetic number, because the mean of its divisors is an integer number (6829920).

Almost surely, 2^97989089 is an apocalyptic number.

It is an amenable number.

97989089 is a deficient number, since it is larger than the sum of its proper divisors (11289631).

97989089 is a wasteful number, since it uses less digits than its factorization.

97989089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192.

The product of its (nonzero) digits is 2939328, while the sum is 59.

The square root of 97989089 is about 9898.9438325510. The cubic root of 97989089 is about 461.0265182067.

It can be divided in two parts, 979890 and 89, that added together give a palindrome (979979).

The spelling of 97989089 in words is "ninety-seven million, nine hundred eighty-nine thousand, eighty-nine".