97988979 has 8 divisors (see below), whose sum is σ = 142529472. Its totient is φ = 59387240.

The previous prime is 97988971. The next prime is 97989049.

97988979 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97988979 - 2³ = 97988971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97988971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484649 + ... + 1484714.

It is an arithmetic number, because the mean of its divisors is an integer number (17816184).

Almost surely, 2^97988979 is an apocalyptic number.

97988979 is a deficient number, since it is larger than the sum of its proper divisors (44540493).

97988979 is a wasteful number, since it uses less digits than its factorization.

97988979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969377.

The product of its digits is 20575296, while the sum is 66.

The square root of 97988979 is about 9898.9382764012. The cubic root of 97988979 is about 461.0263456945.

The spelling of 97988979 in words is "ninety-seven million, nine hundred eighty-eight thousand, nine hundred seventy-nine".