97565 has 16 divisors (see below), whose sum is σ = 134400. Its totient is φ = 67392.

The previous prime is 97561. The next prime is 97571. The reversal of 97565 is 56579.

It is not a de Polignac number, because 97565 - 2² = 97561 is a prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196 + ... + 1274.

It is an arithmetic number, because the mean of its divisors is an integer number (8400).

2⁹⁷⁵⁶⁵ is an apocalyptic number.

97565 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

97565 is a deficient number, since it is larger than the sum of its proper divisors (36835).

97565 is a wasteful number, since it uses less digits than its factorization.

97565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116.

The product of its digits is 9450, while the sum is 32.

The square root of 97565 is about 312.3539658785. The cubic root of 97565 is about 46.0360461006.

The spelling of 97565 in words is "ninety-seven thousand, five hundred sixty-five".