97641994 has 16 divisors (see below), whose sum is σ = 148716000. Its totient is φ = 48075664.

The previous prime is 97641961. The next prime is 97641997. The reversal of 97641994 is 49914679.

It is not an unprimeable number, because it can be changed into a prime (97641997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37032 + ... + 39580.

It is an arithmetic number, because the mean of its divisors is an integer number (9294750).

Almost surely, 2^97641994 is an apocalyptic number.

97641994 is a deficient number, since it is larger than the sum of its proper divisors (51074006).

97641994 is a wasteful number, since it uses less digits than its factorization.

97641994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837.

The product of its digits is 489888, while the sum is 49.

The square root of 97641994 is about 9881.3963588149. The cubic root of 97641994 is about 460.4815278969.

The spelling of 97641994 in words is "ninety-seven million, six hundred forty-one thousand, nine hundred ninety-four".