197623543 has 16 divisors (see below), whose sum is σ = 221792256. Its totient is φ = 174849120.

The previous prime is 197623537. The next prime is 197623561. The reversal of 197623543 is 345326791.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 197623543 - 2⁵ = 197623511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197623496 and 197623505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197623523) 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, 40830 + ... + 45412.

It is an arithmetic number, because the mean of its divisors is an integer number (13862016).

Almost surely, 2^197623543 is an apocalyptic number.

197623543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

197623543 is a deficient number, since it is larger than the sum of its proper divisors (24168713).

197623543 is a wasteful number, since it uses less digits than its factorization.

197623543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4734.

The product of its digits is 136080, while the sum is 40.

The square root of 197623543 is about 14057.8640980769. The cubic root of 197623543 is about 582.4780449399.

The spelling of 197623543 in words is "one hundred ninety-seven million, six hundred twenty-three thousand, five hundred forty-three".