197666948 has 24 divisors (see below), whose sum is σ = 350269920. Its totient is φ = 97597760.

The previous prime is 197666947. The next prime is 197666957. The reversal of 197666948 is 849666791.

It is a junction number, because it is equal to n+sod(n) for n = 197666893 and 197666902.

It is not an unprimeable number, because it can be changed into a prime (197666941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121283 + ... + 122901.

It is an arithmetic number, because the mean of its divisors is an integer number (14594580).

Almost surely, 2^197666948 is an apocalyptic number.

It is an amenable number.

197666948 is a deficient number, since it is larger than the sum of its proper divisors (152602972).

197666948 is a wasteful number, since it uses less digits than its factorization.

197666948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987 (or 1985 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 56.

The square root of 197666948 is about 14059.4078111420. The cubic root of 197666948 is about 582.5206859607.

The spelling of 197666948 in words is "one hundred ninety-seven million, six hundred sixty-six thousand, nine hundred forty-eight".