328771749 has 8 divisors (see below), whose sum is σ = 438833920. Its totient is φ = 218945376.

The previous prime is 328771739. The next prime is 328771769. The reversal of 328771749 is 947177823.

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

It is not a de Polignac number, because 328771749 - 2⁴ = 328771733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 328771698 and 328771707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328771739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55669 + ... + 61290.

It is an arithmetic number, because the mean of its divisors is an integer number (54854240).

Almost surely, 2^328771749 is an apocalyptic number.

It is an amenable number.

328771749 is a deficient number, since it is larger than the sum of its proper divisors (110062171).

328771749 is a wasteful number, since it uses less digits than its factorization.

328771749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117899.

The product of its digits is 592704, while the sum is 48.

The square root of 328771749 is about 18132.0641130567. The cubic root of 328771749 is about 690.1839102291.

The spelling of 328771749 in words is "three hundred twenty-eight million, seven hundred seventy-one thousand, seven hundred forty-nine".