618616 has 16 divisors (see below), whose sum is σ = 1182600. Its totient is φ = 303264.

The previous prime is 618593. The next prime is 618619. The reversal of 618616 is 616816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618619) 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, 306 + ... + 1153.

2⁶¹⁸⁶¹⁶ is an apocalyptic number.

It is an amenable number.

618616 is a deficient number, since it is larger than the sum of its proper divisors (563984).

618616 is a wasteful number, since it uses less digits than its factorization.

618616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1514 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 618616 is about 786.5214555243. The cubic root of 618616 is about 85.2066942068.

The spelling of 618616 in words is "six hundred eighteen thousand, six hundred sixteen".