609945577 has 2 divisors, whose sum is σ = 609945578. Its totient is φ = 609945576.

The previous prime is 609945529. The next prime is 609945613. The reversal of 609945577 is 775549906.

It is a happy number.

609945577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 575088361 + 34857216 = 23981^2 + 5904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-609945577 is a prime.

It is not a weakly prime, because it can be changed into another prime (609945517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304972788 + 304972789.

It is an arithmetic number, because the mean of its divisors is an integer number (304972789).

Almost surely, 2^609945577 is an apocalyptic number.

It is an amenable number.

609945577 is a deficient number, since it is larger than the sum of its proper divisors (1).

609945577 is an equidigital number, since it uses as much as digits as its factorization.

609945577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2381400, while the sum is 52.

The square root of 609945577 is about 24697.0762844512. The cubic root of 609945577 is about 848.0673863806.

The spelling of 609945577 in words is "six hundred nine million, nine hundred forty-five thousand, five hundred seventy-seven".