641606035 has 16 divisors (see below), whose sum is σ = 888633792. Its totient is φ = 435600000.

The previous prime is 641606033. The next prime is 641606047. The reversal of 641606035 is 530606146.

It is not a de Polignac number, because 641606035 - 2¹ = 641606033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 641605988 and 641606006.

It is not an unprimeable number, because it can be changed into a prime (641606033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87216 + ... + 94285.

It is an arithmetic number, because the mean of its divisors is an integer number (55539612).

Almost surely, 2^641606035 is an apocalyptic number.

641606035 is a deficient number, since it is larger than the sum of its proper divisors (247027757).

641606035 is a wasteful number, since it uses less digits than its factorization.

641606035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181614.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 641606035 is about 25329.9434464430. The cubic root of 641606035 is about 862.4941275243.

The spelling of 641606035 in words is "six hundred forty-one million, six hundred six thousand, thirty-five".