606606401 has 4 divisors (see below), whose sum is σ = 607034112. Its totient is φ = 606178692.

The previous prime is 606606391. The next prime is 606606437. The reversal of 606606401 is 104606606.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 606606401 - 2⁶ = 606606337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (606606491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211721 + ... + 214566.

It is an arithmetic number, because the mean of its divisors is an integer number (151758528).

Almost surely, 2^606606401 is an apocalyptic number.

It is an amenable number.

606606401 is a deficient number, since it is larger than the sum of its proper divisors (427711).

606606401 is a wasteful number, since it uses less digits than its factorization.

606606401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427710.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 606606401 is about 24629.3808488967. The cubic root of 606606401 is about 846.5169585846.

The spelling of 606606401 in words is "six hundred six million, six hundred six thousand, four hundred one".