196419709 has 4 divisors (see below), whose sum is σ = 197166816. Its totient is φ = 195672604.

The previous prime is 196419659. The next prime is 196419719. The reversal of 196419709 is 907914691.

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: 907914691 = 751 ⋅1208941.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196419709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196419719) 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, 373159 + ... + 373684.

It is an arithmetic number, because the mean of its divisors is an integer number (49291704).

Almost surely, 2^196419709 is an apocalyptic number.

It is an amenable number.

196419709 is a deficient number, since it is larger than the sum of its proper divisors (747107).

196419709 is an equidigital number, since it uses as much as digits as its factorization.

196419709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747106.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 196419709 is about 14014.9815911402. The cubic root of 196419709 is about 581.2929035429.

The spelling of 196419709 in words is "one hundred ninety-six million, four hundred nineteen thousand, seven hundred nine".