97722 has 24 divisors (see below), whose sum is σ = 217620. Its totient is φ = 31680.

The previous prime is 97711. The next prime is 97729. The reversal of 97722 is 22779.

97722 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in 2 ways, for example, as 77841 + 19881 = 279^2 + 141^2 .

It is a nialpdrome in base 10.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (97729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1054 + ... + 1142.

2⁹⁷⁷²² is an apocalyptic number.

97722 is an abundant number, since it is smaller than the sum of its proper divisors (119898).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108810).

97722 is a wasteful number, since it uses less digits than its factorization.

97722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 155 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 97722 is about 312.6051822987. The cubic root of 97722 is about 46.0607263508.

It can be divided in two parts, 977 and 22, that added together give a palindrome (999).

The spelling of 97722 in words is "ninety-seven thousand, seven hundred twenty-two".