197853516 has 120 divisors (see below), whose sum is σ = 595203840. Its totient is φ = 56372112.

The previous prime is 197853493. The next prime is 197853527. The reversal of 197853516 is 615358791.

It is a happy number.

197853516 is a `hidden beast` number, since 19 + 78 + 53 + 516 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 550945 + ... + 551303.

It is an arithmetic number, because the mean of its divisors is an integer number (4960032).

Almost surely, 2^197853516 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 197853516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297601920).

197853516 is an abundant number, since it is smaller than the sum of its proper divisors (397350324).

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

197853516 is an frugal number, since it uses more digits than its factorization.

197853516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 371 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 197853516 is about 14066.0412341213. The cubic root of 197853516 is about 582.7038990975.

The spelling of 197853516 in words is "one hundred ninety-seven million, eight hundred fifty-three thousand, five hundred sixteen".