3213687226 has 4 divisors (see below), whose sum is σ = 4820530842. Its totient is φ = 1606843612.

The previous prime is 3213687223. The next prime is 3213687263. The reversal of 3213687226 is 6227863123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6227863123 = 18701 ⋅333023.

It can be written as a sum of positive squares in only one way, i.e., 1668804201 + 1544883025 = 40851^2 + 39305^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3213687223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803421805 + ... + 803421808.

Almost surely, 2^3213687226 is an apocalyptic number.

3213687226 is a deficient number, since it is larger than the sum of its proper divisors (1606843616).

3213687226 is a wasteful number, since it uses less digits than its factorization.

3213687226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606843615.

The product of its digits is 145152, while the sum is 40.

The square root of 3213687226 is about 56689.3925351119. The cubic root of 3213687226 is about 1475.7106181921.

The spelling of 3213687226 in words is "three billion, two hundred thirteen million, six hundred eighty-seven thousand, two hundred twenty-six".