616502077 has 4 divisors (see below), whose sum is σ = 617025276. Its totient is φ = 615978880.

The previous prime is 616502011. The next prime is 616502083. The reversal of 616502077 is 770205616.

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 336575716 + 279926361 = 18346^2 + 16731^2 .

It is a cyclic number.

It is not a de Polignac number, because 616502077 - 2²³ = 608113469 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 (616502477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259828 + ... + 262189.

It is an arithmetic number, because the mean of its divisors is an integer number (154256319).

Almost surely, 2^616502077 is an apocalyptic number.

It is an amenable number.

616502077 is a deficient number, since it is larger than the sum of its proper divisors (523199).

616502077 is a wasteful number, since it uses less digits than its factorization.

616502077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523198.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 616502077 is about 24829.4598612213. The cubic root of 616502077 is about 851.0952787154.

The spelling of 616502077 in words is "six hundred sixteen million, five hundred two thousand, seventy-seven".