3221029684 has 6 divisors (see below), whose sum is σ = 5636801954. Its totient is φ = 1610514840.

The previous prime is 3221029649. The next prime is 3221029723. The reversal of 3221029684 is 4869201223.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2608962084 + 612067600 = 51078^2 + 24740^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402628707 + ... + 402628714.

Almost surely, 2^3221029684 is an apocalyptic number.

It is an amenable number.

3221029684 is a deficient number, since it is larger than the sum of its proper divisors (2415772270).

3221029684 is a wasteful number, since it uses less digits than its factorization.

3221029684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805257425 (or 805257423 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 3221029684 is about 56754.1160093257. The cubic root of 3221029684 is about 1476.8336378400.

The spelling of 3221029684 in words is "three billion, two hundred twenty-one million, twenty-nine thousand, six hundred eighty-four".