97718720 has 224 divisors, whose sum is σ = 284414976. Its totient is φ = 31539200.

The previous prime is 97718717. The next prime is 97718759. The reversal of 97718720 is 2781779.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1376285 + ... + 1376355.

Almost surely, 2^97718720 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 97718720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142207488).

97718720 is an abundant number, since it is smaller than the sum of its proper divisors (186696256).

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

97718720 is a wasteful number, since it uses less digits than its factorization.

97718720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 97718720 is about 9885.2779424759. The cubic root of 97718720 is about 460.6021100839.

It can be divided in two parts, 97 and 718720, that added together give a palindrome (718817).

The spelling of 97718720 in words is "ninety-seven million, seven hundred eighteen thousand, seven hundred twenty".