606868581 has 8 divisors (see below), whose sum is σ = 882717984. Its totient is φ = 367799120.

The previous prime is 606868541. The next prime is 606868597. The reversal of 606868581 is 185868606.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 606868581 - 2⁶ = 606868517 is a prime.

It is a super-2 number, since 2×606868581² = 736578949209907122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 606868581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606868541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9194946 + ... + 9195011.

It is an arithmetic number, because the mean of its divisors is an integer number (110339748).

Almost surely, 2^606868581 is an apocalyptic number.

It is an amenable number.

606868581 is a deficient number, since it is larger than the sum of its proper divisors (275849403).

606868581 is a wasteful number, since it uses less digits than its factorization.

606868581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18389971.

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 606868581 is about 24634.7027788037. The cubic root of 606868581 is about 846.6388980876.

The spelling of 606868581 in words is "six hundred six million, eight hundred sixty-eight thousand, five hundred eighty-one".