197291016 has 192 divisors, whose sum is σ = 606780720. Its totient is φ = 57507840.

The previous prime is 197290997. The next prime is 197291023. The reversal of 197291016 is 610192791.

It can be written as a sum of positive squares in 8 ways, for example, as 29484900 + 167806116 = 5430^2 + 12954^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2033880 + ... + 2033976.

Almost surely, 2^197291016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197291016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303390360).

197291016 is an abundant number, since it is smaller than the sum of its proper divisors (409489704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197291016 is a wasteful number, since it uses less digits than its factorization.

197291016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 197291016 is about 14046.0320375542. The cubic root of 197291016 is about 582.1511634839.

The spelling of 197291016 in words is "one hundred ninety-seven million, two hundred ninety-one thousand, sixteen".