97399643684 has 48 divisors (see below), whose sum is σ = 205087209600. Its totient is φ = 39538907136.

The previous prime is 97399643683. The next prime is 97399643701. The reversal of 97399643684 is 48634699379.

It is a happy number.

It is a super-2 number, since 2×97399643684² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97399643683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4067972 + ... + 4091844.

It is an arithmetic number, because the mean of its divisors is an integer number (4272650200).

Almost surely, 2^97399643684 is an apocalyptic number.

It is an amenable number.

97399643684 is an abundant number, since it is smaller than the sum of its proper divisors (107687565916).

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

97399643684 is a wasteful number, since it uses less digits than its factorization.

97399643684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31572 (or 31570 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 68.

The spelling of 97399643684 in words is "ninety-seven billion, three hundred ninety-nine million, six hundred forty-three thousand, six hundred eighty-four".