321682085 has 8 divisors (see below), whose sum is σ = 386373240. Its totient is φ = 257109184.

The previous prime is 321682061. The next prime is 321682093. The reversal of 321682085 is 580286123.

It can be written as a sum of positive squares in 4 ways, for example, as 16900321 + 304781764 = 4111^2 + 17458^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321682085 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23462 + ... + 34551.

It is an arithmetic number, because the mean of its divisors is an integer number (48296655).

Almost surely, 2^321682085 is an apocalyptic number.

It is an amenable number.

321682085 is a deficient number, since it is larger than the sum of its proper divisors (64691155).

321682085 is a wasteful number, since it uses less digits than its factorization.

321682085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59127.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 321682085 is about 17935.4979022050. The cubic root of 321682085 is about 685.1867535628.

The spelling of 321682085 in words is "three hundred twenty-one million, six hundred eighty-two thousand, eighty-five".