97717660 has 12 divisors (see below), whose sum is σ = 205207128. Its totient is φ = 39087056.

The previous prime is 97717657. The next prime is 97717667. The reversal of 97717660 is 6671779.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97717667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2442922 + ... + 2442961.

It is an arithmetic number, because the mean of its divisors is an integer number (17100594).

Almost surely, 2^97717660 is an apocalyptic number.

It is an amenable number.

97717660 is an abundant number, since it is smaller than the sum of its proper divisors (107489468).

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

97717660 is a wasteful number, since it uses less digits than its factorization.

97717660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4885892 (or 4885890 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 97717660 is about 9885.2243272472. The cubic root of 97717660 is about 460.6004446234.

The spelling of 97717660 in words is "ninety-seven million, seven hundred seventeen thousand, six hundred sixty".