97885438 has 12 divisors (see below), whose sum is σ = 170800272. Its totient is φ = 41950860.

The previous prime is 97885433. The next prime is 97885441. The reversal of 97885438 is 83458879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97885433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 499318 + ... + 499513.

It is an arithmetic number, because the mean of its divisors is an integer number (14233356).

Almost surely, 2^97885438 is an apocalyptic number.

97885438 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

97885438 is a deficient number, since it is larger than the sum of its proper divisors (72914834).

97885438 is a wasteful number, since it uses less digits than its factorization.

97885438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998847 (or 998840 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 97885438 is about 9893.7069897991. The cubic root of 97885438 is about 460.8639058212.

The spelling of 97885438 in words is "ninety-seven million, eight hundred eighty-five thousand, four hundred thirty-eight".