197908056 has 64 divisors (see below), whose sum is σ = 554947200. Its totient is φ = 65345184.

The previous prime is 197908049. The next prime is 197908063. The reversal of 197908056 is 650809791.

It is an interprime number because it is at equal distance from previous prime (197908049) and next prime (197908063).

It is a super-4 number, since 4×197908056⁴ (a number of 34 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18831 + ... + 27393.

It is an arithmetic number, because the mean of its divisors is an integer number (8671050).

Almost surely, 2^197908056 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 197908056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277473600).

197908056 is an abundant number, since it is smaller than the sum of its proper divisors (357039144).

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

197908056 is a wasteful number, since it uses less digits than its factorization.

197908056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8685 (or 8675 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 197908056 is about 14067.9798123256. The cubic root of 197908056 is about 582.7574366027.

The spelling of 197908056 in words is "one hundred ninety-seven million, nine hundred eight thousand, fifty-six".