97185438 has 48 divisors (see below), whose sum is σ = 248957280. Its totient is φ = 26808768.

The previous prime is 97185433. The next prime is 97185469. The reversal of 97185438 is 83458179.

97185438 is a `hidden beast` number, since 97 + 18 + 543 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 97185393 and 97185402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97185433) 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 23 ways as a sum of consecutive naturals, for example, 9645 + ... + 16952.

It is an arithmetic number, because the mean of its divisors is an integer number (5186610).

Almost surely, 2^97185438 is an apocalyptic number.

97185438 is an abundant number, since it is smaller than the sum of its proper divisors (151771842).

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

97185438 is a wasteful number, since it uses less digits than its factorization.

97185438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26641 (or 26638 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 97185438 is about 9858.2674948492. The cubic root of 97185438 is about 459.7626973883.

The spelling of 97185438 in words is "ninety-seven million, one hundred eighty-five thousand, four hundred thirty-eight".