328041563 has 4 divisors (see below), whose sum is σ = 331107480. Its totient is φ = 324975648.

The previous prime is 328041557. The next prime is 328041583. The reversal of 328041563 is 365140823.

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

It is a cyclic number.

It is not a de Polignac number, because 328041563 - 2⁴ = 328041547 is a prime.

It is a super-2 number, since 2×328041563² = 215222534110965938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328041523) 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, 1532798 + ... + 1533011.

It is an arithmetic number, because the mean of its divisors is an integer number (82776870).

Almost surely, 2^328041563 is an apocalyptic number.

328041563 is a deficient number, since it is larger than the sum of its proper divisors (3065917).

328041563 is a wasteful number, since it uses less digits than its factorization.

328041563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065916.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 328041563 is about 18111.9177063060. The cubic root of 328041563 is about 689.6725765725.

The spelling of 328041563 in words is "three hundred twenty-eight million, forty-one thousand, five hundred sixty-three".