328826785 has 8 divisors (see below), whose sum is σ = 450962496. Its totient is φ = 225481200.

The previous prime is 328826761. The next prime is 328826789. The reversal of 328826785 is 587628823.

It is a happy number.

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

It is not a de Polignac number, because 328826785 - 2¹⁵ = 328794017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328826789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4697491 + ... + 4697560.

It is an arithmetic number, because the mean of its divisors is an integer number (56370312).

Almost surely, 2^328826785 is an apocalyptic number.

328826785 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

328826785 is a deficient number, since it is larger than the sum of its proper divisors (122135711).

328826785 is an equidigital number, since it uses as much as digits as its factorization.

328826785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9395063.

The product of its digits is 1290240, while the sum is 49.

The square root of 328826785 is about 18133.5816925394. The cubic root of 328826785 is about 690.2224200691. Note that the first 3 decimals are identical.

The spelling of 328826785 in words is "three hundred twenty-eight million, eight hundred twenty-six thousand, seven hundred eighty-five".