197831296 has 64 divisors (see below), whose sum is σ = 431613000. Its totient is φ = 89763840.

The previous prime is 197831281. The next prime is 197831297. The reversal of 197831296 is 692138791.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 110670400 + 87160896 = 10520^2 + 9336^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (197831297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100530 + ... + 102478.

Almost surely, 2^197831296 is an apocalyptic number.

197831296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197831296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215806500).

197831296 is an abundant number, since it is smaller than the sum of its proper divisors (233781704).

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

197831296 is a wasteful number, since it uses less digits than its factorization.

197831296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037 (or 2025 counting only the distinct ones).

The product of its digits is 163296, while the sum is 46.

The square root of 197831296 is about 14065.2513663994. The cubic root of 197831296 is about 582.6820847007.

The spelling of 197831296 in words is "one hundred ninety-seven million, eight hundred thirty-one thousand, two hundred ninety-six".