616345439 has 8 divisors (see below), whose sum is σ = 645672000. Its totient is φ = 587557152.

The previous prime is 616345423. The next prime is 616345453. The reversal of 616345439 is 934543616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 616345439 - 2⁴ = 616345423 is a prime.

It is a super-2 number, since 2×616345439² = 759763400352205442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 616345396 and 616345405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616342439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132224 + ... + 136805.

It is an arithmetic number, because the mean of its divisors is an integer number (80709000).

Almost surely, 2^616345439 is an apocalyptic number.

616345439 is a deficient number, since it is larger than the sum of its proper divisors (29326561).

616345439 is a wasteful number, since it uses less digits than its factorization.

616345439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269137.

The product of its digits is 233280, while the sum is 41.

The square root of 616345439 is about 24826.3053836047. The cubic root of 616345439 is about 851.0231918242.

The spelling of 616345439 in words is "six hundred sixteen million, three hundred forty-five thousand, four hundred thirty-nine".