197280799 has 4 divisors (see below), whose sum is σ = 197440000. Its totient is φ = 197121600.

The previous prime is 197280793. The next prime is 197280803. The reversal of 197280799 is 997082791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997082791 = 31 ⋅32163961.

It is a cyclic number.

It is not a de Polignac number, because 197280799 - 2²³ = 188892191 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 (197280793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77727 + ... + 80224.

It is an arithmetic number, because the mean of its divisors is an integer number (49360000).

Almost surely, 2^197280799 is an apocalyptic number.

197280799 is a deficient number, since it is larger than the sum of its proper divisors (159201).

197280799 is a wasteful number, since it uses less digits than its factorization.

197280799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159200.

The product of its (nonzero) digits is 571536, while the sum is 52.

The square root of 197280799 is about 14045.6683358251. The cubic root of 197280799 is about 582.1411141310.

The spelling of 197280799 in words is "one hundred ninety-seven million, two hundred eighty thousand, seven hundred ninety-nine".