197270849 has 2 divisors, whose sum is σ = 197270850. Its totient is φ = 197270848.

The previous prime is 197270833. The next prime is 197270861. The reversal of 197270849 is 948072791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154132225 + 43138624 = 12415^2 + 6568^2 .

It is a cyclic number.

It is not a de Polignac number, because 197270849 - 2⁴ = 197270833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (197270809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98635424 + 98635425.

It is an arithmetic number, because the mean of its divisors is an integer number (98635425).

Almost surely, 2^197270849 is an apocalyptic number.

It is an amenable number.

197270849 is a deficient number, since it is larger than the sum of its proper divisors (1).

197270849 is an equidigital number, since it uses as much as digits as its factorization.

197270849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 197270849 is about 14045.3141296306. The cubic root of 197270849 is about 582.1313270636.

The spelling of 197270849 in words is "one hundred ninety-seven million, two hundred seventy thousand, eight hundred forty-nine".