97169388 has 48 divisors (see below), whose sum is σ = 237758976. Its totient is φ = 30828160.

The previous prime is 97169377. The next prime is 97169389. The reversal of 97169388 is 88396179.

It is a self number, because there is not a number n which added to its sum of digits gives 97169388.

It is not an unprimeable number, because it can be changed into a prime (97169389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63553 + ... + 65063.

It is an arithmetic number, because the mean of its divisors is an integer number (4953312).

Almost surely, 2^97169388 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 97169388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118879488).

97169388 is an abundant number, since it is smaller than the sum of its proper divisors (140589588).

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

97169388 is a wasteful number, since it uses less digits than its factorization.

97169388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774 (or 1772 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 97169388 is about 9857.4534236790. The cubic root of 97169388 is about 459.7373863345.

The spelling of 97169388 in words is "ninety-seven million, one hundred sixty-nine thousand, three hundred eighty-eight".