617916 has 48 divisors (see below), whose sum is σ = 1651104. Its totient is φ = 178176.

The previous prime is 617887. The next prime is 617917. The reversal of 617916 is 619716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617917) by changing a digit.

617916 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 15 ways as a sum of consecutive naturals, for example, 2536 + ... + 2768.

It is an arithmetic number, because the mean of its divisors is an integer number (34398).

2⁶¹⁷⁹¹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 617916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825552).

617916 is an abundant number, since it is smaller than the sum of its proper divisors (1033188).

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

617916 is a wasteful number, since it uses less digits than its factorization.

617916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 268 counting only the distinct ones).

The product of its digits is 2268, while the sum is 30.

The square root of 617916 is about 786.0763321714. The cubic root of 617916 is about 85.1745432994.

The spelling of 617916 in words is "six hundred seventeen thousand, nine hundred sixteen".