197974680 has 128 divisors (see below), whose sum is σ = 645580800. Its totient is φ = 48384000.

The previous prime is 197974657. The next prime is 197974687. The reversal of 197974680 is 86479791.

It is a super-3 number, since 3×197974680³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197974687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69280 + ... + 72080.

It is an arithmetic number, because the mean of its divisors is an integer number (5043600).

Almost surely, 2^197974680 is an apocalyptic number.

197974680 is a gapful number since it is divisible by the number (10) 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 197974680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322790400).

197974680 is an abundant number, since it is smaller than the sum of its proper divisors (447606120).

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

197974680 is a wasteful number, since it uses less digits than its factorization.

197974680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2865 (or 2861 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 197974680 is about 14070.3475436821. The cubic root of 197974680 is about 582.8228226483.

The spelling of 197974680 in words is "one hundred ninety-seven million, nine hundred seventy-four thousand, six hundred eighty".