197473845 has 32 divisors (see below), whose sum is σ = 325062144. Its totient is φ = 102312000.

The previous prime is 197473831. The next prime is 197473867. The reversal of 197473845 is 548374791.

It is a happy number.

It is not a de Polignac number, because 197473845 - 2¹⁷ = 197342773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197473794 and 197473803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135370 + ... + 136820.

It is an arithmetic number, because the mean of its divisors is an integer number (10158192).

Almost surely, 2^197473845 is an apocalyptic number.

197473845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

197473845 is a deficient number, since it is larger than the sum of its proper divisors (127588299).

197473845 is a wasteful number, since it uses less digits than its factorization.

197473845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713.

The product of its digits is 846720, while the sum is 48.

The square root of 197473845 is about 14052.5387386052. The cubic root of 197473845 is about 582.3309338839.

The spelling of 197473845 in words is "one hundred ninety-seven million, four hundred seventy-three thousand, eight hundred forty-five".