617939712 has 324 divisors, whose sum is σ = 2068507560. Its totient is φ = 181868544.

The previous prime is 617939669. The next prime is 617939719. The reversal of 617939712 is 217939716.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not an unprimeable number, because it can be changed into a prime (617939719) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26866933 + ... + 26866955.

Almost surely, 2^617939712 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 617939712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034253780).

617939712 is an abundant number, since it is smaller than the sum of its proper divisors (1450567848).

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

617939712 is a wasteful number, since it uses less digits than its factorization.

617939712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 41 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 617939712 is about 24858.3931902285. The cubic root of 617939712 is about 851.7563278565.

The spelling of 617939712 in words is "six hundred seventeen million, nine hundred thirty-nine thousand, seven hundred twelve".