197000899 has 2 divisors, whose sum is σ = 197000900. Its totient is φ = 197000898.

The previous prime is 197000893. The next prime is 197000927. The reversal of 197000899 is 998000791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197000899 - 2²¹ = 194903747 is a prime.

It is not a weakly prime, because it can be changed into another prime (197000893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98500449 + 98500450.

It is an arithmetic number, because the mean of its divisors is an integer number (98500450).

Almost surely, 2^197000899 is an apocalyptic number.

197000899 is a deficient number, since it is larger than the sum of its proper divisors (1).

197000899 is an equidigital number, since it uses as much as digits as its factorization.

197000899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 43.

The square root of 197000899 is about 14035.7008731306. The cubic root of 197000899 is about 581.8656718523.

The spelling of 197000899 in words is "one hundred ninety-seven million, eight hundred ninety-nine", and thus it is an aban number.