196657601 has 8 divisors (see below), whose sum is σ = 224990784. Its totient is φ = 168384240.

The previous prime is 196657597. The next prime is 196657651. The reversal of 196657601 is 106756691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 196657601 - 2² = 196657597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196657651) 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 7 ways as a sum of consecutive naturals, for example, 7670 + ... + 21263.

It is an arithmetic number, because the mean of its divisors is an integer number (28123848).

Almost surely, 2^196657601 is an apocalyptic number.

It is an amenable number.

196657601 is a deficient number, since it is larger than the sum of its proper divisors (28333183).

196657601 is an equidigital number, since it uses as much as digits as its factorization.

196657601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29911.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 196657601 is about 14023.4660836756. The cubic root of 196657601 is about 581.5274847910.

The spelling of 196657601 in words is "one hundred ninety-six million, six hundred fifty-seven thousand, six hundred one".