197550849 has 16 divisors (see below), whose sum is σ = 268007040. Its totient is φ = 129417600.

The previous prime is 197550839. The next prime is 197550853. The reversal of 197550849 is 948055791.

It is not a de Polignac number, because 197550849 - 2¹¹ = 197548801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197550798 and 197550807.

It is not an unprimeable number, because it can be changed into a prime (197550839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39132 + ... + 43890.

It is an arithmetic number, because the mean of its divisors is an integer number (16750440).

Almost surely, 2^197550849 is an apocalyptic number.

It is an amenable number.

197550849 is a deficient number, since it is larger than the sum of its proper divisors (70456191).

197550849 is a wasteful number, since it uses less digits than its factorization.

197550849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 197550849 is about 14055.2783323561. The cubic root of 197550849 is about 582.4066164532.

The spelling of 197550849 in words is "one hundred ninety-seven million, five hundred fifty thousand, eight hundred forty-nine".