617793066 has 48 divisors (see below), whose sum is σ = 1464540480. Its totient is φ = 186658560.

The previous prime is 617793023. The next prime is 617793089. The reversal of 617793066 is 660397716.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65475 + ... + 74313.

It is an arithmetic number, because the mean of its divisors is an integer number (30511260).

Almost surely, 2^617793066 is an apocalyptic number.

617793066 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 617793066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (732270240).

617793066 is an abundant number, since it is smaller than the sum of its proper divisors (846747414).

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

617793066 is a wasteful number, since it uses less digits than its factorization.

617793066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9211 (or 9208 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 617793066 is about 24855.4433877169. The cubic root of 617793066 is about 851.6889445083.

The spelling of 617793066 in words is "six hundred seventeen million, seven hundred ninety-three thousand, sixty-six".