97579723384 has 64 divisors (see below), whose sum is σ = 215967588480. Its totient is φ = 40748400000.

The previous prime is 97579723361. The next prime is 97579723411. The reversal of 97579723384 is 48332797579.

It is a super-2 number, since 2×97579723384² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39259 + ... + 443509.

It is an arithmetic number, because the mean of its divisors is an integer number (3374493570).

Almost surely, 2^97579723384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97579723384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107983794240).

97579723384 is an abundant number, since it is smaller than the sum of its proper divisors (118387865096).

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

97579723384 is a wasteful number, since it uses less digits than its factorization.

97579723384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404492 (or 404488 counting only the distinct ones).

The product of its digits is 80015040, while the sum is 64.

The spelling of 97579723384 in words is "ninety-seven billion, five hundred seventy-nine million, seven hundred twenty-three thousand, three hundred eighty-four".