197473855 has 8 divisors (see below), whose sum is σ = 238699152. Its totient is φ = 156825408.

The previous prime is 197473831. The next prime is 197473867. The reversal of 197473855 is 558374791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197473855 - 2¹⁵ = 197441087 is a prime.

It is a super-2 number, since 2×197473855² = 77991846817122050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197473799 and 197473808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143457 + ... + 144826.

It is an arithmetic number, because the mean of its divisors is an integer number (29837394).

Almost surely, 2^197473855 is an apocalyptic number.

197473855 is a deficient number, since it is larger than the sum of its proper divisors (41225297).

197473855 is a wasteful number, since it uses less digits than its factorization.

197473855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288425.

The product of its digits is 1058400, while the sum is 49.

The square root of 197473855 is about 14052.5390944128. The cubic root of 197473855 is about 582.3309437136.

The spelling of 197473855 in words is "one hundred ninety-seven million, four hundred seventy-three thousand, eight hundred fifty-five".