328797745 has 16 divisors (see below), whose sum is σ = 398127312. Its totient is φ = 260669440.

The previous prime is 328797739. The next prime is 328797751. The reversal of 328797745 is 547797823.

It is an interprime number because it is at equal distance from previous prime (328797739) and next prime (328797751).

It can be written as a sum of positive squares in 8 ways, for example, as 65092624 + 263705121 = 8068^2 + 16239^2 .

It is not a de Polignac number, because 328797745 - 2⁷ = 328797617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 328797692 and 328797701.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 512625 + ... + 513265.

It is an arithmetic number, because the mean of its divisors is an integer number (24882957).

Almost surely, 2^328797745 is an apocalyptic number.

It is an amenable number.

328797745 is a deficient number, since it is larger than the sum of its proper divisors (69329567).

328797745 is a wasteful number, since it uses less digits than its factorization.

328797745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412.

The product of its digits is 2963520, while the sum is 52.

The square root of 328797745 is about 18132.7809505327. The cubic root of 328797745 is about 690.2021007094.

The spelling of 328797745 in words is "three hundred twenty-eight million, seven hundred ninety-seven thousand, seven hundred forty-five".