It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18383479 = 179 ⋅102701.
It is a cyclic number.
It is a Duffinian number.
It is a congruent number.
It is a 4134-hyperperfect number.
Almost surely, 297438381 is an apocalyptic number.
It is an amenable number.
97438381 is a wasteful number, since it uses less digits than its factorization.
97438381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23570.
The square root of 97438381 is about 9871.0881365734. The cubic root of 97438381 is about 460.1612242047.
The spelling of 97438381 in words is "ninety-seven million, four hundred thirty-eight thousand, three hundred eighty-one".