8328186397 has 4 divisors (see below), whose sum is σ = 8331371356. Its totient is φ = 8325001440.

The previous prime is 8328186371. The next prime is 8328186409. The reversal of 8328186397 is 7936818238.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3971394361 + 4356792036 = 63019^2 + 66006^2 .

It is a cyclic number.

It is not a de Polignac number, because 8328186397 - 2¹⁵ = 8328153629 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 (8328186367) 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, 1588554 + ... + 1593787.

It is an arithmetic number, because the mean of its divisors is an integer number (2082842839).

Almost surely, 2^8328186397 is an apocalyptic number.

It is an amenable number.

8328186397 is a deficient number, since it is larger than the sum of its proper divisors (3184959).

8328186397 is a wasteful number, since it uses less digits than its factorization.

8328186397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184958.

The product of its digits is 3483648, while the sum is 55.

The square root of 8328186397 is about 91258.8976319570. The cubic root of 8328186397 is about 2026.9831831434.

The spelling of 8328186397 in words is "eight billion, three hundred twenty-eight million, one hundred eighty-six thousand, three hundred ninety-seven".