97988488979 has 4 divisors (see below), whose sum is σ = 98322920976. Its totient is φ = 97654056984.

The previous prime is 97988488957. The next prime is 97988488981.

It is a happy number.

97988488979 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97988488979 - 2²⁰ = 97987440403 is a prime.

It is a super-3 number, since 3×97988488979³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97988488979.

It is not an unprimeable number, because it can be changed into a prime (97988488999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167215559 + ... + 167216144.

It is an arithmetic number, because the mean of its divisors is an integer number (24580730244).

Almost surely, 2^97988488979 is an apocalyptic number.

97988488979 is a deficient number, since it is larger than the sum of its proper divisors (334431997).

97988488979 is a wasteful number, since it uses less digits than its factorization.

97988488979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334431996.

The product of its digits is 5267275776, while the sum is 86.

The spelling of 97988488979 in words is "ninety-seven billion, nine hundred eighty-eight million, four hundred eighty-eight thousand, nine hundred seventy-nine".