609874819 has 2 divisors, whose sum is σ = 609874820. Its totient is φ = 609874818.

The previous prime is 609874781. The next prime is 609874849. The reversal of 609874819 is 918478906.

It is a happy number.

609874819 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 is a cyclic number.

It is not a de Polignac number, because 609874819 - 2⁷ = 609874691 is a prime.

It is a super-2 number, since 2×609874819² = 743894589700565522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (609874849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304937409 + 304937410.

It is an arithmetic number, because the mean of its divisors is an integer number (304937410).

Almost surely, 2^609874819 is an apocalyptic number.

609874819 is a deficient number, since it is larger than the sum of its proper divisors (1).

609874819 is an equidigital number, since it uses as much as digits as its factorization.

609874819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 609874819 is about 24695.6437251593. The cubic root of 609874819 is about 848.0345911745.

The spelling of 609874819 in words is "six hundred nine million, eight hundred seventy-four thousand, eight hundred nineteen".