196986813 has 8 divisors (see below), whose sum is σ = 276472800. Its totient is φ = 124412688.

The previous prime is 196986793. The next prime is 196986841. The reversal of 196986813 is 318689691.

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

It is not a de Polignac number, because 196986813 - 2¹⁴ = 196970429 is a prime.

It is a super-3 number, since 3×196986813³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196986613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1727898 + ... + 1728011.

It is an arithmetic number, because the mean of its divisors is an integer number (34559100).

Almost surely, 2^196986813 is an apocalyptic number.

It is an amenable number.

196986813 is a deficient number, since it is larger than the sum of its proper divisors (79485987).

196986813 is a wasteful number, since it uses less digits than its factorization.

196986813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3455931.

The product of its digits is 559872, while the sum is 51.

The square root of 196986813 is about 14035.1990723324. The cubic root of 196986813 is about 581.8518032943.

The spelling of 196986813 in words is "one hundred ninety-six million, nine hundred eighty-six thousand, eight hundred thirteen".