617601001 has 4 divisors (see below), whose sum is σ = 617699412. Its totient is φ = 617502592.

The previous prime is 617600989. The next prime is 617601011. The reversal of 617601001 is 100106716.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 273869401 + 343731600 = 16549^2 + 18540^2 .

It is a cyclic number.

It is not a de Polignac number, because 617601001 - 2¹³ = 617592809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (617601011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39100 + ... + 52573.

It is an arithmetic number, because the mean of its divisors is an integer number (154424853).

Almost surely, 2^617601001 is an apocalyptic number.

It is an amenable number.

617601001 is a deficient number, since it is larger than the sum of its proper divisors (98411).

617601001 is an equidigital number, since it uses as much as digits as its factorization.

617601001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98410.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 617601001 is about 24851.5794467877. The cubic root of 617601001 is about 851.6006751504.

Adding to 617601001 its reverse (100106716), we get a palindrome (717707717).

The spelling of 617601001 in words is "six hundred seventeen million, six hundred one thousand, one".