197940964 has 12 divisors (see below), whose sum is σ = 373042684. Its totient is φ = 91357344.

The previous prime is 197940961. The next prime is 197941021. The reversal of 197940964 is 469049791.

It can be written as a sum of positive squares in 2 ways, for example, as 23912100 + 174028864 = 4890^2 + 13192^2 .

It is not an unprimeable number, because it can be changed into a prime (197940961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1903227 + ... + 1903330.

Almost surely, 2^197940964 is an apocalyptic number.

It is an amenable number.

197940964 is a deficient number, since it is larger than the sum of its proper divisors (175101720).

197940964 is a wasteful number, since it uses less digits than its factorization.

197940964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806574 (or 3806572 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 197940964 is about 14069.1493701645. The cubic root of 197940964 is about 582.7897349660.

The spelling of 197940964 in words is "one hundred ninety-seven million, nine hundred forty thousand, nine hundred sixty-four".