606619109 has 4 divisors (see below), whose sum is σ = 642302604. Its totient is φ = 570935616.

The previous prime is 606619093. The next prime is 606619121. The reversal of 606619109 is 901916606.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 462379009 + 144240100 = 21503^2 + 12010^2 .

It is not a de Polignac number, because 606619109 - 2⁴ = 606619093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606619159) 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, 17841722 + ... + 17841755.

It is an arithmetic number, because the mean of its divisors is an integer number (160575651).

Almost surely, 2^606619109 is an apocalyptic number.

It is an amenable number.

606619109 is a deficient number, since it is larger than the sum of its proper divisors (35683495).

606619109 is a wasteful number, since it uses less digits than its factorization.

606619109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35683494.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 606619109 is about 24629.6388321063. The cubic root of 606619109 is about 846.5228698655.

The spelling of 606619109 in words is "six hundred six million, six hundred nineteen thousand, one hundred nine".