97641866 has 8 divisors (see below), whose sum is σ = 167386080. Its totient is φ = 41846508.

The previous prime is 97641839. The next prime is 97641883. The reversal of 97641866 is 66814679.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×97641866³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97641866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3487196 + ... + 3487223.

It is an arithmetic number, because the mean of its divisors is an integer number (20923260).

Almost surely, 2^97641866 is an apocalyptic number.

97641866 is a deficient number, since it is larger than the sum of its proper divisors (69744214).

97641866 is a wasteful number, since it uses less digits than its factorization.

97641866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6974428.

The product of its digits is 435456, while the sum is 47.

The square root of 97641866 is about 9881.3898819953. The cubic root of 97641866 is about 460.4813266800.

The spelling of 97641866 in words is "ninety-seven million, six hundred forty-one thousand, eight hundred sixty-six".