97890196 has 12 divisors (see below), whose sum is σ = 177215220. Its totient is φ = 47257280.

The previous prime is 97890187. The next prime is 97890209. The reversal of 97890196 is 69109879.

It can be written as a sum of positive squares in 2 ways, for example, as 16240900 + 81649296 = 4030^2 + 9036^2 .

It is a congruent number.

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, 421825 + ... + 422056.

It is an arithmetic number, because the mean of its divisors is an integer number (14767935).

Almost surely, 2^97890196 is an apocalyptic number.

It is an amenable number.

97890196 is a deficient number, since it is larger than the sum of its proper divisors (79325024).

97890196 is a wasteful number, since it uses less digits than its factorization.

97890196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843914 (or 843912 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 97890196 is about 9893.9474427551. The cubic root of 97890196 is about 460.8713729004.

The spelling of 97890196 in words is "ninety-seven million, eight hundred ninety thousand, one hundred ninety-six".