608455909 has 2 divisors, whose sum is σ = 608455910. Its totient is φ = 608455908.

The previous prime is 608455807. The next prime is 608455919. The reversal of 608455909 is 909554806.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 424772100 + 183683809 = 20610^2 + 13553^2 .

It is a cyclic number.

It is not a de Polignac number, because 608455909 - 2¹¹ = 608453861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (608455919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304227954 + 304227955.

It is an arithmetic number, because the mean of its divisors is an integer number (304227955).

Almost surely, 2^608455909 is an apocalyptic number.

It is an amenable number.

608455909 is a deficient number, since it is larger than the sum of its proper divisors (1).

608455909 is an equidigital number, since it uses as much as digits as its factorization.

608455909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 608455909 is about 24666.8990552116. The cubic root of 608455909 is about 847.3764128602.

The spelling of 608455909 in words is "six hundred eight million, four hundred fifty-five thousand, nine hundred nine".