97866 has 12 divisors (see below), whose sum is σ = 212082. Its totient is φ = 32616.

The previous prime is 97861. The next prime is 97871. The reversal of 97866 is 66879.

It is an interprime number because it is at equal distance from previous prime (97861) and next prime (97871).

It can be written as a sum of positive squares in only one way, i.e., 81225 + 16641 = 285^2 + 129^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 97866.

It is not an unprimeable number, because it can be changed into a prime (97861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2701 + ... + 2736.

2⁹⁷⁸⁶⁶ is an apocalyptic number.

97866 is an abundant number, since it is smaller than the sum of its proper divisors (114216).

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

97866 is a wasteful number, since it uses less digits than its factorization.

97866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5445 (or 5442 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 97866 is about 312.8354199895. The cubic root of 97866 is about 46.0833397825.

It can be divided in two parts, 9 and 7866, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 97866 in words is "ninety-seven thousand, eight hundred sixty-six".