97239960 has 128 divisors (see below), whose sum is σ = 326592000. Its totient is φ = 25734528.

The previous prime is 97239943. The next prime is 97239971. The reversal of 97239960 is 6993279.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193069 + ... + 193571.

It is an arithmetic number, because the mean of its divisors is an integer number (2551500).

Almost surely, 2^97239960 is an apocalyptic number.

97239960 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97239960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163296000).

97239960 is an abundant number, since it is smaller than the sum of its proper divisors (229352040).

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

97239960 is a wasteful number, since it uses less digits than its factorization.

97239960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 97239960 is about 9861.0324003118. The cubic root of 97239960 is about 459.8486584682.

It can be divided in two parts, 9723 and 9960, that added together give a 9-th power (19683 = 3⁹).

The spelling of 97239960 in words is "ninety-seven million, two hundred thirty-nine thousand, nine hundred sixty".