3368721685 has 8 divisors (see below), whose sum is σ = 4619961216. Its totient is φ = 2309980560.

The previous prime is 3368721661. The next prime is 3368721709. The reversal of 3368721685 is 5861278633.

It is an interprime number because it is at equal distance from previous prime (3368721661) and next prime (3368721709).

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

It is not a de Polignac number, because 3368721685 - 2¹⁹ = 3368197397 is a prime.

It is a super-3 number, since 3×3368721685³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian 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, 48124561 + ... + 48124630.

It is an arithmetic number, because the mean of its divisors is an integer number (577495152).

Almost surely, 2^3368721685 is an apocalyptic number.

3368721685 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3368721685 is a deficient number, since it is larger than the sum of its proper divisors (1251239531).

3368721685 is an equidigital number, since it uses as much as digits as its factorization.

3368721685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96249203.

The product of its digits is 1451520, while the sum is 49.

The square root of 3368721685 is about 58040.6899080292. The cubic root of 3368721685 is about 1499.0693019127.

The spelling of 3368721685 in words is "three billion, three hundred sixty-eight million, seven hundred twenty-one thousand, six hundred eighty-five".