609089477 has 2 divisors, whose sum is σ = 609089478. Its totient is φ = 609089476.

The previous prime is 609089431. The next prime is 609089491. The reversal of 609089477 is 774980906.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 386751556 + 222337921 = 19666^2 + 14911^2 .

It is a cyclic number.

It is not a de Polignac number, because 609089477 - 2¹⁸ = 608827333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609089417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304544738 + 304544739.

It is an arithmetic number, because the mean of its divisors is an integer number (304544739).

Almost surely, 2^609089477 is an apocalyptic number.

It is an amenable number.

609089477 is a deficient number, since it is larger than the sum of its proper divisors (1).

609089477 is an equidigital number, since it uses as much as digits as its factorization.

609089477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 609089477 is about 24679.7381874282. The cubic root of 609089477 is about 847.6704272312.

The spelling of 609089477 in words is "six hundred nine million, eighty-nine thousand, four hundred seventy-seven".