97818616 has 16 divisors (see below), whose sum is σ = 209611440. Its totient is φ = 41922240.

The previous prime is 97818599. The next prime is 97818641. The reversal of 97818616 is 61681879.

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, 873325 + ... + 873436.

It is an arithmetic number, because the mean of its divisors is an integer number (13100715).

Almost surely, 2^97818616 is an apocalyptic number.

It is an amenable number.

97818616 is an abundant number, since it is smaller than the sum of its proper divisors (111792824).

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

97818616 is a wasteful number, since it uses less digits than its factorization.

97818616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746774 (or 1746770 counting only the distinct ones).

The product of its digits is 145152, while the sum is 46.

The square root of 97818616 is about 9890.3294181741. The cubic root of 97818616 is about 460.7590115733.

The spelling of 97818616 in words is "ninety-seven million, eight hundred eighteen thousand, six hundred sixteen".