197987338 has 16 divisors (see below), whose sum is σ = 314719560. Its totient is φ = 93090816.

The previous prime is 197987329. The next prime is 197987399. The reversal of 197987338 is 833789791.

It can be written as a sum of positive squares in 4 ways, for example, as 109683729 + 88303609 = 10473^2 + 9397^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62128 + ... + 65236.

Almost surely, 2^197987338 is an apocalyptic number.

197987338 is a deficient number, since it is larger than the sum of its proper divisors (116732222).

197987338 is a wasteful number, since it uses less digits than its factorization.

197987338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001.

The product of its digits is 2286144, while the sum is 55.

The square root of 197987338 is about 14070.7973476985. The cubic root of 197987338 is about 582.8352437890.

The spelling of 197987338 in words is "one hundred ninety-seven million, nine hundred eighty-seven thousand, three hundred thirty-eight".