3643213234 has 4 divisors (see below), whose sum is σ = 5464819854. Its totient is φ = 1821606616.

The previous prime is 3643213199. The next prime is 3643213253. The reversal of 3643213234 is 4323123463.

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., 2450547009 + 1192666225 = 49503^2 + 34535^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3643213196 and 3643213205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910803307 + ... + 910803310.

Almost surely, 2^3643213234 is an apocalyptic number.

3643213234 is a deficient number, since it is larger than the sum of its proper divisors (1821606620).

3643213234 is a wasteful number, since it uses less digits than its factorization.

3643213234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821606619.

The product of its digits is 31104, while the sum is 31.

The square root of 3643213234 is about 60359.0360592347. The cubic root of 3643213234 is about 1538.7268436753.

Adding to 3643213234 its reverse (4323123463), we get a palindrome (7966336697).

The spelling of 3643213234 in words is "three billion, six hundred forty-three million, two hundred thirteen thousand, two hundred thirty-four".