197089378 has 16 divisors (see below), whose sum is σ = 303972984. Its totient is φ = 95783040.

The previous prime is 197089349. The next prime is 197089421. The reversal of 197089378 is 873980791.

It can be written as a sum of positive squares in 4 ways, for example, as 61669609 + 135419769 = 7853^2 + 11637^2 .

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, 18376 + ... + 27052.

Almost surely, 2^197089378 is an apocalyptic number.

197089378 is a deficient number, since it is larger than the sum of its proper divisors (106883606).

197089378 is a wasteful number, since it uses less digits than its factorization.

197089378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8997.

The product of its (nonzero) digits is 762048, while the sum is 52.

The square root of 197089378 is about 14038.8524459800. The cubic root of 197089378 is about 581.9527699103.

The spelling of 197089378 in words is "one hundred ninety-seven million, eighty-nine thousand, three hundred seventy-eight".