197328646 has 8 divisors (see below), whose sum is σ = 301577904. Its totient is φ = 96802680.

The previous prime is 197328619. The next prime is 197328653. The reversal of 197328646 is 646823791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 197328596 and 197328605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930690 + ... + 930901.

It is an arithmetic number, because the mean of its divisors is an integer number (37697238).

Almost surely, 2^197328646 is an apocalyptic number.

197328646 is a deficient number, since it is larger than the sum of its proper divisors (104249258).

197328646 is a wasteful number, since it uses less digits than its factorization.

197328646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861646.

The product of its digits is 435456, while the sum is 46.

The square root of 197328646 is about 14047.3714978995. The cubic root of 197328646 is about 582.1881730347.

The spelling of 197328646 in words is "one hundred ninety-seven million, three hundred twenty-eight thousand, six hundred forty-six".