197838688 has 12 divisors (see below), whose sum is σ = 389494980. Its totient is φ = 98919328.

The previous prime is 197838671. The next prime is 197838691. The reversal of 197838688 is 886838791.

197838688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×197838688² = 78280292939122688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3091198 + ... + 3091261.

It is an arithmetic number, because the mean of its divisors is an integer number (32457915).

Almost surely, 2^197838688 is an apocalyptic number.

It is an amenable number.

197838688 is a deficient number, since it is larger than the sum of its proper divisors (191656292).

197838688 is an equidigital number, since it uses as much as digits as its factorization.

197838688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6182469 (or 6182461 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 58.

The square root of 197838688 is about 14065.5141391988. The cubic root of 197838688 is about 582.6893419486.

The spelling of 197838688 in words is "one hundred ninety-seven million, eight hundred thirty-eight thousand, six hundred eighty-eight".