328828061 has 4 divisors (see below), whose sum is σ = 328885500. Its totient is φ = 328770624.

The previous prime is 328828057. The next prime is 328828081. The reversal of 328828061 is 160828823.

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 263055961 + 65772100 = 16219^2 + 8110^2 .

It is a cyclic number.

It is not a de Polignac number, because 328828061 - 2² = 328828057 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 (328828001) 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, 19046 + ... + 31943.

It is an arithmetic number, because the mean of its divisors is an integer number (82221375).

Almost surely, 2^328828061 is an apocalyptic number.

It is an amenable number.

328828061 is a deficient number, since it is larger than the sum of its proper divisors (57439).

328828061 is an equidigital number, since it uses as much as digits as its factorization.

328828061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57438.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 328828061 is about 18133.6168758469. The cubic root of 328828061 is about 690.2233128620.

The spelling of 328828061 in words is "three hundred twenty-eight million, eight hundred twenty-eight thousand, sixty-one".