3489813 has 18 divisors (see below), whose sum is σ = 5276726. Its totient is φ = 2222352.

The previous prime is 3489793. The next prime is 3489817. The reversal of 3489813 is 3189843.

It can be written as a sum of positive squares in only one way, i.e., 3470769 + 19044 = 1863^2 + 138^2 .

It is not a de Polignac number, because 3489813 - 2⁵ = 3489781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3489817) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4395 + ... + 5127.

Almost surely, 2^3489813 is an apocalyptic number.

It is an amenable number.

3489813 is a deficient number, since it is larger than the sum of its proper divisors (1786913).

3489813 is a wasteful number, since it uses less digits than its factorization.

3489813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 759 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 3489813 is about 1868.1041191540. The cubic root of 3489813 is about 151.6820019648.

The spelling of 3489813 in words is "three million, four hundred eighty-nine thousand, eight hundred thirteen".