197297764 has 24 divisors (see below), whose sum is σ = 366050048. Its totient is φ = 92884320.

The previous prime is 197297719. The next prime is 197297809. The reversal of 197297764 is 467792791.

It is an interprime number because it is at equal distance from previous prime (197297719) and next prime (197297809).

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, 16914 + ... + 26089.

Almost surely, 2^197297764 is an apocalyptic number.

It is an amenable number.

197297764 is a deficient number, since it is larger than the sum of its proper divisors (168752284).

197297764 is a wasteful number, since it uses less digits than its factorization.

197297764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43075 (or 43073 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 52.

The square root of 197297764 is about 14046.2722456885. The cubic root of 197297764 is about 582.1578005681.

The spelling of 197297764 in words is "one hundred ninety-seven million, two hundred ninety-seven thousand, seven hundred sixty-four".