196920679 has 4 divisors (see below), whose sum is σ = 197227576. Its totient is φ = 196613784.

The previous prime is 196920677. The next prime is 196920727. The reversal of 196920679 is 976029691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 196920679 - 2¹ = 196920677 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 (196920671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152484 + ... + 153769.

It is an arithmetic number, because the mean of its divisors is an integer number (49306894).

Almost surely, 2^196920679 is an apocalyptic number.

196920679 is a deficient number, since it is larger than the sum of its proper divisors (306897).

196920679 is an equidigital number, since it uses as much as digits as its factorization.

196920679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306896.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 196920679 is about 14032.8428694973. The cubic root of 196920679 is about 581.7866813475.

The spelling of 196920679 in words is "one hundred ninety-six million, nine hundred twenty thousand, six hundred seventy-nine".