641601017 has 16 divisors (see below), whose sum is σ = 689095680. Its totient is φ = 596030400.

The previous prime is 641601013. The next prime is 641601019. The reversal of 641601017 is 710106146.

It is a cyclic number.

It is not a de Polignac number, because 641601017 - 2² = 641601013 is a prime.

It is not an unprimeable number, because it can be changed into a prime (641601011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160748 + ... + 164690.

It is an arithmetic number, because the mean of its divisors is an integer number (43068480).

Almost surely, 2^641601017 is an apocalyptic number.

It is an amenable number.

641601017 is a deficient number, since it is larger than the sum of its proper divisors (47494663).

641601017 is a wasteful number, since it uses less digits than its factorization.

641601017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4184.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 641601017 is about 25329.8443935213. The cubic root of 641601017 is about 862.4918789966.

The spelling of 641601017 in words is "six hundred forty-one million, six hundred one thousand, seventeen".