616860 has 72 divisors (see below), whose sum is σ = 1965600. Its totient is φ = 156288.

The previous prime is 616849. The next prime is 616871. The reversal of 616860 is 68616.

616860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (616849) and next prime (616871).

It is a congruent number.

It is an unprimeable number.

616860 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4066 + ... + 4214.

It is an arithmetic number, because the mean of its divisors is an integer number (27300).

2⁶¹⁶⁸⁶⁰ is an apocalyptic number.

616860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (982800).

616860 is an abundant number, since it is smaller than the sum of its proper divisors (1348740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616860 is a wasteful number, since it uses less digits than its factorization.

616860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 616860 is about 785.4043544570. The cubic root of 616860 is about 85.1259953825.

The spelling of 616860 in words is "six hundred sixteen thousand, eight hundred sixty".