197291017 has 16 divisors (see below), whose sum is σ = 248745600. Its totient is φ = 152000640.

The previous prime is 197290997. The next prime is 197291023. The reversal of 197291017 is 710192791.

It is not a de Polignac number, because 197291017 - 2¹⁵ = 197258249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197291027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7542 + ... + 21247.

It is an arithmetic number, because the mean of its divisors is an integer number (15546600).

Almost surely, 2^197291017 is an apocalyptic number.

It is an amenable number.

197291017 is a deficient number, since it is larger than the sum of its proper divisors (51454583).

197291017 is a wasteful number, since it uses less digits than its factorization.

197291017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28896.

The product of its (nonzero) digits is 7938, while the sum is 37.

The square root of 197291017 is about 14046.0320731515. The cubic root of 197291017 is about 582.1511644675.

The spelling of 197291017 in words is "one hundred ninety-seven million, two hundred ninety-one thousand, seventeen".