3421636 has 12 divisors (see below), whose sum is σ = 6029100. Its totient is φ = 1699040.

The previous prime is 3421633. The next prime is 3421637. The reversal of 3421636 is 6361243.

It can be written as a sum of positive squares in 2 ways, for example, as 988036 + 2433600 = 994^2 + 1560^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3421636.

It is not an unprimeable number, because it can be changed into a prime (3421631) 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, 2275 + ... + 3466.

It is an arithmetic number, because the mean of its divisors is an integer number (502425).

Almost surely, 2^3421636 is an apocalyptic number.

It is an amenable number.

3421636 is a deficient number, since it is larger than the sum of its proper divisors (2607464).

3421636 is a wasteful number, since it uses less digits than its factorization.

3421636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5894 (or 5892 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 3421636 is about 1849.7664717472. The cubic root of 3421636 is about 150.6877455911.

Adding to 3421636 its reverse (6361243), we get a palindrome (9782879).

The spelling of 3421636 in words is "three million, four hundred twenty-one thousand, six hundred thirty-six".