197688470 has 32 divisors (see below), whose sum is σ = 416598336. Its totient is φ = 66124800.

The previous prime is 197688443. The next prime is 197688497. The reversal of 197688470 is 74886791.

It is an interprime number because it is at equal distance from previous prime (197688443) and next prime (197688497).

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 31571 + ... + 37310.

It is an arithmetic number, because the mean of its divisors is an integer number (13018698).

Almost surely, 2^197688470 is an apocalyptic number.

197688470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197688470 is an abundant number, since it is smaller than the sum of its proper divisors (218909866).

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

197688470 is a wasteful number, since it uses less digits than its factorization.

197688470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68936.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 197688470 is about 14060.1731852776. The cubic root of 197688470 is about 582.5418268331.

The spelling of 197688470 in words is "one hundred ninety-seven million, six hundred eighty-eight thousand, four hundred seventy".