606682081 has 8 divisors (see below), whose sum is σ = 623663144. Its totient is φ = 589731840.

The previous prime is 606682067. The next prime is 606682127. The reversal of 606682081 is 180286606.

It can be written as a sum of positive squares in 4 ways, for example, as 354380625 + 252301456 = 18825^2 + 15884^2 .

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

It is a 3-Lehmer number, since φ(606682081) divides (606682081-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-606682081 is a prime.

It is a super-2 number, since 2×606682081² = 736126294812981122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 606682081.

It is not an unprimeable number, because it can be changed into a prime (606682031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35551 + ... + 49771.

It is an arithmetic number, because the mean of its divisors is an integer number (77957893).

It is a Poulet number, since it divides 2^606682080-1.

Almost surely, 2^606682081 is an apocalyptic number.

606682081 is the 14221-st octagonal number.

It is an amenable number.

606682081 is a deficient number, since it is larger than the sum of its proper divisors (16981063).

606682081 is a wasteful number, since it uses less digits than its factorization.

606682081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15411.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 606682081 is about 24630.9171774013. The cubic root of 606682081 is about 846.5521608395.

The spelling of 606682081 in words is "six hundred six million, six hundred eighty-two thousand, eighty-one".