197087660 has 48 divisors (see below), whose sum is σ = 516015360. Its totient is φ = 61429440.

The previous prime is 197087651. The next prime is 197087689. The reversal of 197087660 is 66780791.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62450 + ... + 65529.

It is an arithmetic number, because the mean of its divisors is an integer number (10750320).

Almost surely, 2^197087660 is an apocalyptic number.

197087660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197087660 is an abundant number, since it is smaller than the sum of its proper divisors (318927700).

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

197087660 is a wasteful number, since it uses less digits than its factorization.

197087660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128006 (or 128004 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 197087660 is about 14038.7912585094. The cubic root of 197087660 is about 581.9510789723.

The spelling of 197087660 in words is "one hundred ninety-seven million, eighty-seven thousand, six hundred sixty".