617320112 has 40 divisors (see below), whose sum is σ = 1243075200. Its totient is φ = 296663040.

The previous prime is 617320087. The next prime is 617320153. The reversal of 617320112 is 211023716.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69728 + ... + 78080.

It is an arithmetic number, because the mean of its divisors is an integer number (31076880).

Almost surely, 2^617320112 is an apocalyptic number.

617320112 is a gapful number since it is divisible by the number (62) 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 617320112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621537600).

617320112 is an abundant number, since it is smaller than the sum of its proper divisors (625755088).

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

617320112 is a wasteful number, since it uses less digits than its factorization.

617320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541 (or 8535 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 617320112 is about 24845.9274731293. The cubic root of 617320112 is about 851.4715510423.

Adding to 617320112 its reverse (211023716), we get a palindrome (828343828).

The spelling of 617320112 in words is "six hundred seventeen million, three hundred twenty thousand, one hundred twelve".