328578263 has 4 divisors (see below), whose sum is σ = 353853528. Its totient is φ = 303303000.

The previous prime is 328578259. The next prime is 328578277. The reversal of 328578263 is 362875823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362875823 = 457 ⋅794039.

It is not a de Polignac number, because 328578263 - 2² = 328578259 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 (328578203) 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 3 ways as a sum of consecutive naturals, for example, 12637613 + ... + 12637638.

It is an arithmetic number, because the mean of its divisors is an integer number (88463382).

Almost surely, 2^328578263 is an apocalyptic number.

328578263 is a deficient number, since it is larger than the sum of its proper divisors (25275265).

328578263 is a wasteful number, since it uses less digits than its factorization.

328578263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25275264.

The product of its digits is 483840, while the sum is 44.

The square root of 328578263 is about 18126.7278624687. The cubic root of 328578263 is about 690.0484899060.

The spelling of 328578263 in words is "three hundred twenty-eight million, five hundred seventy-eight thousand, two hundred sixty-three".