197284845 has 8 divisors (see below), whose sum is σ = 315655776. Its totient is φ = 105218576.

The previous prime is 197284807. The next prime is 197284873. The reversal of 197284845 is 548482791.

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 197284845 - 2¹¹ = 197282797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197284794 and 197284803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6576147 + ... + 6576176.

It is an arithmetic number, because the mean of its divisors is an integer number (39456972).

Almost surely, 2^197284845 is an apocalyptic number.

197284845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

197284845 is a deficient number, since it is larger than the sum of its proper divisors (118370931).

197284845 is a wasteful number, since it uses less digits than its factorization.

197284845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13152331.

The product of its digits is 645120, while the sum is 48.

The square root of 197284845 is about 14045.8123652568. The cubic root of 197284845 is about 582.1450937831.

The spelling of 197284845 in words is "one hundred ninety-seven million, two hundred eighty-four thousand, eight hundred forty-five".