617006217 has 8 divisors (see below), whose sum is σ = 822844960. Its totient is φ = 411252480.

The previous prime is 617006197. The next prime is 617006219. The reversal of 617006217 is 712600716.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 617006217 - 2¹¹ = 617004169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (617006219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1759 + ... + 35172.

It is an arithmetic number, because the mean of its divisors is an integer number (102855620).

Almost surely, 2^617006217 is an apocalyptic number.

It is an amenable number.

617006217 is a deficient number, since it is larger than the sum of its proper divisors (205838743).

617006217 is a wasteful number, since it uses less digits than its factorization.

617006217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42503.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 617006217 is about 24839.6098399311. The cubic root of 617006217 is about 851.3272077909.

The spelling of 617006217 in words is "six hundred seventeen million, six thousand, two hundred seventeen".