606654021 has 8 divisors (see below), whose sum is σ = 851444320. Its totient is φ = 383149872.

The previous prime is 606654011. The next prime is 606654023. The reversal of 606654021 is 120456606.

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

It is not a de Polignac number, because 606654021 - 2¹⁰ = 606652997 is a prime.

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 606654021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606654023) 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, 5321470 + ... + 5321583.

It is an arithmetic number, because the mean of its divisors is an integer number (106430540).

Almost surely, 2^606654021 is an apocalyptic number.

It is an amenable number.

606654021 is a deficient number, since it is larger than the sum of its proper divisors (244790299).

606654021 is a wasteful number, since it uses less digits than its factorization.

606654021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10643075.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 606654021 is about 24630.3475614941. The cubic root of 606654021 is about 846.5391091822.

The spelling of 606654021 in words is "six hundred six million, six hundred fifty-four thousand, twenty-one".