606376921 has 8 divisors (see below), whose sum is σ = 642587400. Its totient is φ = 571186560.

The previous prime is 606376829. The next prime is 606376931. The reversal of 606376921 is 129673606.

It can be written as a sum of positive squares in 4 ways, for example, as 22429696 + 583947225 = 4736^2 + 24165^2 .

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 606376921 - 2¹³ = 606368729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (606376931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253806 + ... + 256183.

It is an arithmetic number, because the mean of its divisors is an integer number (80323425).

Almost surely, 2^606376921 is an apocalyptic number.

It is an amenable number.

606376921 is a deficient number, since it is larger than the sum of its proper divisors (36210479).

606376921 is a wasteful number, since it uses less digits than its factorization.

606376921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510059.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 606376921 is about 24624.7217446208. The cubic root of 606376921 is about 846.4101989611.

The spelling of 606376921 in words is "six hundred six million, three hundred seventy-six thousand, nine hundred twenty-one".