196577 has 4 divisors (see below), whose sum is σ = 200340. Its totient is φ = 192816.

The previous prime is 196561. The next prime is 196579. The reversal of 196577 is 775691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 775691 = 7 ⋅110813.

It can be written as a sum of positive squares in 2 ways, for example, as 96721 + 99856 = 311^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 196577 - 2⁴ = 196561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196579) 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 in 3 ways as a sum of consecutive naturals, for example, 1802 + ... + 1907.

It is an arithmetic number, because the mean of its divisors is an integer number (50085).

2¹⁹⁶⁵⁷⁷ is an apocalyptic number.

It is an amenable number.

196577 is a deficient number, since it is larger than the sum of its proper divisors (3763).

196577 is an equidigital number, since it uses as much as digits as its factorization.

196577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762.

The product of its digits is 13230, while the sum is 35.

The square root of 196577 is about 443.3700486050. The cubic root of 196577 is about 58.1448026718.

Multiplying 196577 by its sum of digits (35), we get a triangular number (6880195 = T₃₇₀₉).

The spelling of 196577 in words is "one hundred ninety-six thousand, five hundred seventy-seven".