197420536 has 16 divisors (see below), whose sum is σ = 371642040. Its totient is φ = 98316000.

The previous prime is 197420533. The next prime is 197420551. The reversal of 197420536 is 635024791.

It is a junction number, because it is equal to n+sod(n) for n = 197420495 and 197420504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197420533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47151 + ... + 51166.

Almost surely, 2^197420536 is an apocalyptic number.

It is an amenable number.

197420536 is a deficient number, since it is larger than the sum of its proper divisors (174221504).

197420536 is a wasteful number, since it uses less digits than its factorization.

197420536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98574 (or 98570 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 197420536 is about 14050.6418358735. The cubic root of 197420536 is about 582.2785281697.

The spelling of 197420536 in words is "one hundred ninety-seven million, four hundred twenty thousand, five hundred thirty-six".