197428712 has 16 divisors (see below), whose sum is σ = 398654340. Its totient is φ = 91120896.

The previous prime is 197428687. The next prime is 197428729. The reversal of 197428712 is 217824791.

It can be written as a sum of positive squares in 2 ways, for example, as 194490916 + 2937796 = 13946^2 + 1714^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 197428712.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 949073 + ... + 949280.

Almost surely, 2^197428712 is an apocalyptic number.

It is an amenable number.

197428712 is an abundant number, since it is smaller than the sum of its proper divisors (201225628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197428712 is a wasteful number, since it uses less digits than its factorization.

197428712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898372 (or 1898368 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 197428712 is about 14050.9327804242. The cubic root of 197428712 is about 582.2865662453.

The spelling of 197428712 in words is "one hundred ninety-seven million, four hundred twenty-eight thousand, seven hundred twelve".