3501689 has 2 divisors, whose sum is σ = 3501690. Its totient is φ = 3501688.

The previous prime is 3501679. The next prime is 3501703. The reversal of 3501689 is 9861053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2706025 + 795664 = 1645^2 + 892^2 .

It is an emirp because it is prime and its reverse (9861053) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3501689 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3501629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1750844 + 1750845.

It is an arithmetic number, because the mean of its divisors is an integer number (1750845).

Almost surely, 2^3501689 is an apocalyptic number.

It is an amenable number.

3501689 is a deficient number, since it is larger than the sum of its proper divisors (1).

3501689 is an equidigital number, since it uses as much as digits as its factorization.

3501689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 3501689 is about 1871.2800431790. The cubic root of 3501689 is about 151.8538675175.

The spelling of 3501689 in words is "three million, five hundred one thousand, six hundred eighty-nine".