197372916 has 96 divisors (see below), whose sum is σ = 554225280. Its totient is φ = 60383232.

The previous prime is 197372899. The next prime is 197372933. The reversal of 197372916 is 619273791.

197372916 is a `hidden beast` number, since 197 + 372 + 91 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (197372899) and next prime (197372933).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360555 + ... + 361101.

It is an arithmetic number, because the mean of its divisors is an integer number (5773180).

Almost surely, 2^197372916 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 197372916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277112640).

197372916 is an abundant number, since it is smaller than the sum of its proper divisors (356852364).

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

197372916 is a wasteful number, since it uses less digits than its factorization.

197372916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 822 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 197372916 is about 14048.9471491639. The cubic root of 197372916 is about 582.2317070811.

The spelling of 197372916 in words is "one hundred ninety-seven million, three hundred seventy-two thousand, nine hundred sixteen".