3643226 has 4 divisors (see below), whose sum is σ = 5464842. Its totient is φ = 1821612.

The previous prime is 3643217. The next prime is 3643267. The reversal of 3643226 is 6223463.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3222025 + 421201 = 1795^2 + 649^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3643195 and 3643204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910805 + ... + 910808.

Almost surely, 2^3643226 is an apocalyptic number.

3643226 is a deficient number, since it is larger than the sum of its proper divisors (1821616).

3643226 is a wasteful number, since it uses less digits than its factorization.

3643226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821615.

The product of its digits is 5184, while the sum is 26.

The square root of 3643226 is about 1908.7236573166. The cubic root of 3643226 is about 153.8728640932.

Adding to 3643226 its reverse (6223463), we get a palindrome (9866689).

The spelling of 3643226 in words is "three million, six hundred forty-three thousand, two hundred twenty-six".