192728197 has 2 divisors, whose sum is σ = 192728198. Its totient is φ = 192728196.

The previous prime is 192728183. The next prime is 192728213. The reversal of 192728197 is 791827291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167987521 + 24740676 = 12961^2 + 4974^2 .

It is an emirp because it is prime and its reverse (791827291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 192728197 - 2⁷ = 192728069 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (192728177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96364098 + 96364099.

It is an arithmetic number, because the mean of its divisors is an integer number (96364099).

Almost surely, 2^192728197 is an apocalyptic number.

It is an amenable number.

192728197 is a deficient number, since it is larger than the sum of its proper divisors (1).

192728197 is an equidigital number, since it uses as much as digits as its factorization.

192728197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 46.

The square root of 192728197 is about 13882.6581388436. The cubic root of 192728197 is about 577.6282426041.

The spelling of 192728197 in words is "one hundred ninety-two million, seven hundred twenty-eight thousand, one hundred ninety-seven".