328445487 has 6 divisors (see below), whose sum is σ = 474421272. Its totient is φ = 218963652.

The previous prime is 328445483. The next prime is 328445501. The reversal of 328445487 is 784544823.

It is a happy number.

It is not a de Polignac number, because 328445487 - 2² = 328445483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328445483) 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 5 ways as a sum of consecutive naturals, for example, 18246963 + ... + 18246980.

It is an arithmetic number, because the mean of its divisors is an integer number (79070212).

Almost surely, 2^328445487 is an apocalyptic number.

328445487 is a deficient number, since it is larger than the sum of its proper divisors (145975785).

328445487 is a wasteful number, since it uses less digits than its factorization.

328445487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36493949 (or 36493946 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The square root of 328445487 is about 18123.0650553376. The cubic root of 328445487 is about 689.9555295851.

The spelling of 328445487 in words is "three hundred twenty-eight million, four hundred forty-five thousand, four hundred eighty-seven".