609653831 has 2 divisors, whose sum is σ = 609653832. Its totient is φ = 609653830.

The previous prime is 609653819. The next prime is 609653833. The reversal of 609653831 is 138356906.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 609653831 - 2¹⁰ = 609652807 is a prime.

It is a super-2 number, since 2×609653831² = 743355587305953122, which contains 22 as substring.

Together with 609653833, 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 (609653833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304826915 + 304826916.

It is an arithmetic number, because the mean of its divisors is an integer number (304826916).

Almost surely, 2^609653831 is an apocalyptic number.

609653831 is a deficient number, since it is larger than the sum of its proper divisors (1).

609653831 is an equidigital number, since it uses as much as digits as its factorization.

609653831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 609653831 is about 24691.1690893728. The cubic root of 609653831 is about 847.9321504209.

The spelling of 609653831 in words is "six hundred nine million, six hundred fifty-three thousand, eight hundred thirty-one".