97318944 has 72 divisors (see below), whose sum is σ = 277729452. Its totient is φ = 32325120.

The previous prime is 97318943. The next prime is 97318967. The reversal of 97318944 is 44981379.

It can be written as a sum of positive squares in 2 ways, for example, as 92390544 + 4928400 = 9612^2 + 2220^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×97318944² = 18941953722550272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97318944.

It is not an unprimeable number, because it can be changed into a prime (97318943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132402 + ... + 133134.

Almost surely, 2^97318944 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 97318944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138864726).

97318944 is an abundant number, since it is smaller than the sum of its proper divisors (180410508).

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

97318944 is a wasteful number, since it uses less digits than its factorization.

97318944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210 (or 1199 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 97318944 is about 9865.0364418992. The cubic root of 97318944 is about 459.9731301255.

The spelling of 97318944 in words is "ninety-seven million, three hundred eighteen thousand, nine hundred forty-four".