3489685 has 4 divisors (see below), whose sum is σ = 4187628. Its totient is φ = 2791744.

The previous prime is 3489683. The next prime is 3489691. The reversal of 3489685 is 5869843.

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 1833316 + 1656369 = 1354^2 + 1287^2 .

It is a cyclic number.

It is not a de Polignac number, because 3489685 - 2¹ = 3489683 is a prime.

It is a Duffinian number.

3489685 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3489683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348964 + ... + 348973.

It is an arithmetic number, because the mean of its divisors is an integer number (1046907).

Almost surely, 2^3489685 is an apocalyptic number.

It is an amenable number.

3489685 is a deficient number, since it is larger than the sum of its proper divisors (697943).

3489685 is an equidigital number, since it uses as much as digits as its factorization.

3489685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697942.

The product of its digits is 207360, while the sum is 43.

The square root of 3489685 is about 1868.0698595074. The cubic root of 3489685 is about 151.6801474687.

The spelling of 3489685 in words is "three million, four hundred eighty-nine thousand, six hundred eighty-five".