328678461 has 12 divisors (see below), whose sum is σ = 490072960. Its totient is φ = 212050440.

The previous prime is 328678403. The next prime is 328678463. The reversal of 328678461 is 164876823.

It is not a de Polignac number, because 328678461 - 2¹⁸ = 328416317 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 (328678463) 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 11 ways as a sum of consecutive naturals, for example, 588751 + ... + 589308.

Almost surely, 2^328678461 is an apocalyptic number.

328678461 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

328678461 is a deficient number, since it is larger than the sum of its proper divisors (161394499).

328678461 is a wasteful number, since it uses less digits than its factorization.

328678461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178096 (or 1178093 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 328678461 is about 18129.4914710810. The cubic root of 328678461 is about 690.1186248474.

It can be divided in two parts, 32867 and 8461, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 328678461 in words is "three hundred twenty-eight million, six hundred seventy-eight thousand, four hundred sixty-one".