197684920 has 16 divisors (see below), whose sum is σ = 444791160. Its totient is φ = 79073952.

The previous prime is 197684899. The next prime is 197684941. The reversal of 197684920 is 29486791.

It is an interprime number because it is at equal distance from previous prime (197684899) and next prime (197684941).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2471022 + ... + 2471101.

Almost surely, 2^197684920 is an apocalyptic number.

197684920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197684920 is an abundant number, since it is smaller than the sum of its proper divisors (247106240).

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

197684920 is a wasteful number, since it uses less digits than its factorization.

197684920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4942134 (or 4942130 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 197684920 is about 14060.0469416002. The cubic root of 197684920 is about 582.5383398048.

The spelling of 197684920 in words is "one hundred ninety-seven million, six hundred eighty-four thousand, nine hundred twenty".