196910641 has 4 divisors (see below), whose sum is σ = 197425152. Its totient is φ = 196396132.

The previous prime is 196910639. The next prime is 196910653. The reversal of 196910641 is 146019691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146019691 = 191 ⋅764501.

It is a cyclic number.

It is not a de Polignac number, because 196910641 - 2¹ = 196910639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196910641.

It is not an unprimeable number, because it can be changed into a prime (196910621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256681 + ... + 257446.

It is an arithmetic number, because the mean of its divisors is an integer number (49356288).

Almost surely, 2^196910641 is an apocalyptic number.

It is an amenable number.

196910641 is a deficient number, since it is larger than the sum of its proper divisors (514511).

196910641 is an equidigital number, since it uses as much as digits as its factorization.

196910641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514510.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 196910641 is about 14032.4852039829. The cubic root of 196910641 is about 581.7767956853.

The spelling of 196910641 in words is "one hundred ninety-six million, nine hundred ten thousand, six hundred forty-one".