616766 has 4 divisors (see below), whose sum is σ = 925152. Its totient is φ = 308382.

The previous prime is 616757. The next prime is 616769. The reversal of 616766 is 667616.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 616766.

It is not an unprimeable number, because it can be changed into a prime (616769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154190 + ... + 154193.

It is an arithmetic number, because the mean of its divisors is an integer number (231288).

2⁶¹⁶⁷⁶⁶ is an apocalyptic number.

616766 is a deficient number, since it is larger than the sum of its proper divisors (308386).

616766 is a wasteful number, since it uses less digits than its factorization.

616766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308385.

The product of its digits is 9072, while the sum is 32.

The square root of 616766 is about 785.3445103902. The cubic root of 616766 is about 85.1216711977.

The spelling of 616766 in words is "six hundred sixteen thousand, seven hundred sixty-six".