197011904 has 28 divisors (see below), whose sum is σ = 393307824. Its totient is φ = 97910784.

The previous prime is 197011901. The next prime is 197011907. The reversal of 197011904 is 409110791.

It is a happy number.

197011904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (197011901) and next prime (197011907).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197011901) 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, 1472 + ... + 19904.

It is an arithmetic number, because the mean of its divisors is an integer number (14046708).

Almost surely, 2^197011904 is an apocalyptic number.

It is an amenable number.

197011904 is a deficient number, since it is larger than the sum of its proper divisors (196295920).

197011904 is a wasteful number, since it uses less digits than its factorization.

197011904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18612 (or 18602 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 197011904 is about 14036.0929036538. The cubic root of 197011904 is about 581.8765065110.

The spelling of 197011904 in words is "one hundred ninety-seven million, eleven thousand, nine hundred four".