609599 has 2 divisors, whose sum is σ = 609600. Its totient is φ = 609598.

The previous prime is 609593. The next prime is 609601. The reversal of 609599 is 995906.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 609599 - 2¹² = 605503 is a prime.

It is a super-2 number, since 2×609599² = 743221881602, which contains 22 as substring.

Together with 609601, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304799 + 304800.

It is an arithmetic number, because the mean of its divisors is an integer number (304800).

2⁶⁰⁹⁵⁹⁹ is an apocalyptic number.

609599 is a deficient number, since it is larger than the sum of its proper divisors (1).

609599 is an equidigital number, since it uses as much as digits as its factorization.

609599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 609599 is about 780.7682114431. The cubic root of 609599 is about 84.7906729240.

The spelling of 609599 in words is "six hundred nine thousand, five hundred ninety-nine".