197512928 has 12 divisors (see below), whose sum is σ = 388853640. Its totient is φ = 98756448.

The previous prime is 197512921. The next prime is 197512957. The reversal of 197512928 is 829215791.

It is a happy number.

It is a super-2 number, since 2×197512928² = 78022713454266368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197512921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3086108 + ... + 3086171.

It is an arithmetic number, because the mean of its divisors is an integer number (32404470).

Almost surely, 2^197512928 is an apocalyptic number.

It is an amenable number.

197512928 is a deficient number, since it is larger than the sum of its proper divisors (191340712).

197512928 is an equidigital number, since it uses as much as digits as its factorization.

197512928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172289 (or 6172281 counting only the distinct ones).

The product of its digits is 90720, while the sum is 44.

The square root of 197512928 is about 14053.9292726269. The cubic root of 197512928 is about 582.3693486566.

The spelling of 197512928 in words is "one hundred ninety-seven million, five hundred twelve thousand, nine hundred twenty-eight".