196890013 has 4 divisors (see below), whose sum is σ = 197656380. Its totient is φ = 196123648.

The previous prime is 196890007. The next prime is 196890017. The reversal of 196890013 is 310098691.

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

It can be written as a sum of positive squares in 2 ways, for example, as 195384484 + 1505529 = 13978^2 + 1227^2 .

It is a cyclic number.

It is not a de Polignac number, because 196890013 - 2⁵ = 196889981 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 (196890017) 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, 382798 + ... + 383311.

It is an arithmetic number, because the mean of its divisors is an integer number (49414095).

Almost surely, 2^196890013 is an apocalyptic number.

It is an amenable number.

196890013 is a deficient number, since it is larger than the sum of its proper divisors (766367).

196890013 is an equidigital number, since it uses as much as digits as its factorization.

196890013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766366.

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

The square root of 196890013 is about 14031.7501759403. The cubic root of 196890013 is about 581.7564796835.

The spelling of 196890013 in words is "one hundred ninety-six million, eight hundred ninety thousand, thirteen".