97405188 has 12 divisors (see below), whose sum is σ = 227278800. Its totient is φ = 32468392.

The previous prime is 97405163. The next prime is 97405199. The reversal of 97405188 is 88150479.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4058538 + ... + 4058561.

It is an arithmetic number, because the mean of its divisors is an integer number (18939900).

Almost surely, 2^97405188 is an apocalyptic number.

It is an amenable number.

97405188 is an abundant number, since it is smaller than the sum of its proper divisors (129873612).

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

97405188 is a wasteful number, since it uses less digits than its factorization.

97405188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8117106 (or 8117104 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 97405188 is about 9869.4066690962. The cubic root of 97405188 is about 460.1089659943.

The spelling of 97405188 in words is "ninety-seven million, four hundred five thousand, one hundred eighty-eight".