97388172 has 144 divisors (see below), whose sum is σ = 301916160. Its totient is φ = 25837056.

The previous prime is 97388171. The next prime is 97388197. The reversal of 97388172 is 27188379.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97388171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 543979 + ... + 544157.

It is an arithmetic number, because the mean of its divisors is an integer number (2096640).

Almost surely, 2^97388172 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 97388172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150958080).

97388172 is an abundant number, since it is smaller than the sum of its proper divisors (204527988).

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

97388172 is a wasteful number, since it uses less digits than its factorization.

97388172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 335 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 97388172 is about 9868.5445735427. The cubic root of 97388172 is about 460.0821718358.

The spelling of 97388172 in words is "ninety-seven million, three hundred eighty-eight thousand, one hundred seventy-two".