328893646 has 8 divisors (see below), whose sum is σ = 493772544. Its totient is φ = 164302800.

The previous prime is 328893637. The next prime is 328893647. The reversal of 328893646 is 646398823.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 328893646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328893647) 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, 69135 + ... + 73738.

It is an arithmetic number, because the mean of its divisors is an integer number (61721568).

Almost surely, 2^328893646 is an apocalyptic number.

328893646 is a deficient number, since it is larger than the sum of its proper divisors (164878898).

328893646 is a wasteful number, since it uses less digits than its factorization.

328893646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144026.

The product of its digits is 1492992, while the sum is 49.

The square root of 328893646 is about 18135.4251673348. The cubic root of 328893646 is about 690.2691983283.

The spelling of 328893646 in words is "three hundred twenty-eight million, eight hundred ninety-three thousand, six hundred forty-six".