328227197 has 4 divisors (see below), whose sum is σ = 329945856. Its totient is φ = 326508540.

The previous prime is 328227157. The next prime is 328227239. The reversal of 328227197 is 791722823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 791722823 = 29 ⋅27300787.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328227197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328227157) 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, 859043 + ... + 859424.

It is an arithmetic number, because the mean of its divisors is an integer number (82486464).

Almost surely, 2^328227197 is an apocalyptic number.

It is an amenable number.

328227197 is a deficient number, since it is larger than the sum of its proper divisors (1718659).

328227197 is a wasteful number, since it uses less digits than its factorization.

328227197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718658.

The product of its digits is 84672, while the sum is 41.

The square root of 328227197 is about 18117.0416183217. The cubic root of 328227197 is about 689.8026439701.

The spelling of 328227197 in words is "three hundred twenty-eight million, two hundred twenty-seven thousand, one hundred ninety-seven".