328881755 has 8 divisors (see below), whose sum is σ = 398566224. Its totient is φ = 260500000.

The previous prime is 328881743. The next prime is 328881757. The reversal of 328881755 is 557188823.

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

It is not a de Polignac number, because 328881755 - 2⁴ = 328881739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328881757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325121 + ... + 326130.

It is an arithmetic number, because the mean of its divisors is an integer number (49820778).

Almost surely, 2^328881755 is an apocalyptic number.

328881755 is a deficient number, since it is larger than the sum of its proper divisors (69684469).

328881755 is a wasteful number, since it uses less digits than its factorization.

328881755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651357.

The product of its digits is 537600, while the sum is 47.

The square root of 328881755 is about 18135.0973253523. The cubic root of 328881755 is about 690.2608794385.

It can be divided in two parts, 32888 and 1755, that added together give a palindrome (34643).

The spelling of 328881755 in words is "three hundred twenty-eight million, eight hundred eighty-one thousand, seven hundred fifty-five".