197972050 has 12 divisors (see below), whose sum is σ = 368228106. Its totient is φ = 79188800.

The previous prime is 197972003. The next prime is 197972051. The reversal of 197972050 is 50279791.

It can be written as a sum of positive squares in 3 ways, for example, as 80227849 + 117744201 = 8957^2 + 10851^2 .

It is a junction number, because it is equal to n+sod(n) for n = 197971994 and 197972012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197972051) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1979671 + ... + 1979770.

Almost surely, 2^197972050 is an apocalyptic number.

197972050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197972050 is a deficient number, since it is larger than the sum of its proper divisors (170256056).

197972050 is a wasteful number, since it uses less digits than its factorization.

197972050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959453 (or 3959448 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 197972050 is about 14070.2540844151. The cubic root of 197972050 is about 582.8202417950.

The spelling of 197972050 in words is "one hundred ninety-seven million, nine hundred seventy-two thousand, fifty".