616929965 has 4 divisors (see below), whose sum is σ = 740315964. Its totient is φ = 493543968.

The previous prime is 616929961. The next prime is 616930031. The reversal of 616929965 is 569929616.

616929965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 220641316 + 396288649 = 14854^2 + 19907^2 .

It is a cyclic number.

It is not a de Polignac number, because 616929965 - 2² = 616929961 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616929961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61692992 + ... + 61693001.

It is an arithmetic number, because the mean of its divisors is an integer number (185078991).

Almost surely, 2^616929965 is an apocalyptic number.

It is an amenable number.

616929965 is a deficient number, since it is larger than the sum of its proper divisors (123385999).

616929965 is a wasteful number, since it uses less digits than its factorization.

616929965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123385998.

The product of its digits is 1574640, while the sum is 53.

The square root of 616929965 is about 24838.0749052740. The cubic root of 616929965 is about 851.2921362499.

The spelling of 616929965 in words is "six hundred sixteen million, nine hundred twenty-nine thousand, nine hundred sixty-five".