97771 has 2 divisors, whose sum is σ = 97772. Its totient is φ = 97770.

The previous prime is 97729. The next prime is 97777. The reversal of 97771 is 17779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97771 - 2⁹ = 97259 is a prime.

It is a plaindrome in base 13.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (97777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48885 + 48886.

It is an arithmetic number, because the mean of its divisors is an integer number (48886).

2⁹⁷⁷⁷¹ is an apocalyptic number.

97771 is a deficient number, since it is larger than the sum of its proper divisors (1).

97771 is an equidigital number, since it uses as much as digits as its factorization.

97771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3087, while the sum is 31.

The square root of 97771 is about 312.6835460973. The cubic root of 97771 is about 46.0684236911.

It can be divided in two parts, 97 and 771, that added together give a palindrome (868).

The spelling of 97771 in words is "ninety-seven thousand, seven hundred seventy-one".