197661344 has 12 divisors (see below), whose sum is σ = 389145834. Its totient is φ = 98830656.

The previous prime is 197661311. The next prime is 197661349. The reversal of 197661344 is 443166791.

It can be written as a sum of positive squares in only one way, i.e., 189888400 + 7772944 = 13780^2 + 2788^2 .

It is not an unprimeable number, because it can be changed into a prime (197661349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3088427 + ... + 3088490.

Almost surely, 2^197661344 is an apocalyptic number.

It is an amenable number.

197661344 is a deficient number, since it is larger than the sum of its proper divisors (191484490).

197661344 is an equidigital number, since it uses as much as digits as its factorization.

197661344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6176927 (or 6176919 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 197661344 is about 14059.2085125728. The cubic root of 197661344 is about 582.5151809486.

The spelling of 197661344 in words is "one hundred ninety-seven million, six hundred sixty-one thousand, three hundred forty-four".