196724285 has 4 divisors (see below), whose sum is σ = 236069148. Its totient is φ = 157379424.

The previous prime is 196724257. The next prime is 196724291. The reversal of 196724285 is 582427691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 582427691 = 19 ⋅30654089.

It can be written as a sum of positive squares in 2 ways, for example, as 77193796 + 119530489 = 8786^2 + 10933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196724285 is a prime.

It is a super-2 number, since 2×196724285² = 77400888617522450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 19672424 + ... + 19672433.

It is an arithmetic number, because the mean of its divisors is an integer number (59017287).

Almost surely, 2^196724285 is an apocalyptic number.

It is an amenable number.

196724285 is a deficient number, since it is larger than the sum of its proper divisors (39344863).

196724285 is an equidigital number, since it uses as much as digits as its factorization.

196724285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39344862.

The product of its digits is 241920, while the sum is 44.

The square root of 196724285 is about 14025.8434683979. The cubic root of 196724285 is about 581.5932067977.

The spelling of 196724285 in words is "one hundred ninety-six million, seven hundred twenty-four thousand, two hundred eighty-five".