197407680 has 56 divisors (see below), whose sum is σ = 626772432. Its totient is φ = 52641792.

The previous prime is 197407627. The next prime is 197407697. The reversal of 197407680 is 86704791.

It is a super-4 number, since 4×197407680⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101857 + ... + 103776.

Almost surely, 2^197407680 is an apocalyptic number.

197407680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197407680 is an abundant number, since it is smaller than the sum of its proper divisors (429364752).

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

197407680 is a wasteful number, since it uses less digits than its factorization.

197407680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205653 (or 205643 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 197407680 is about 14050.1843404277. The cubic root of 197407680 is about 582.2658885943.

The spelling of 197407680 in words is "one hundred ninety-seven million, four hundred seven thousand, six hundred eighty".