3385984821 has 16 divisors (see below), whose sum is σ = 4546713600. Its totient is φ = 2241347120.

The previous prime is 3385984757. The next prime is 3385984831. The reversal of 3385984821 is 1284895833.

It is a cyclic number.

It is not a de Polignac number, because 3385984821 - 2⁶ = 3385984757 is a prime.

It is a super-2 number, since 2×3385984821² = 22929786416084804082, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3385984831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238480 + ... + 252278.

It is an arithmetic number, because the mean of its divisors is an integer number (284169600).

Almost surely, 2^3385984821 is an apocalyptic number.

It is an amenable number.

3385984821 is a deficient number, since it is larger than the sum of its proper divisors (1160728779).

3385984821 is a wasteful number, since it uses less digits than its factorization.

3385984821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14376.

The product of its digits is 1658880, while the sum is 51.

The square root of 3385984821 is about 58189.2156761027. The cubic root of 3385984821 is about 1501.6256184955.

The spelling of 3385984821 in words is "three billion, three hundred eighty-five million, nine hundred eighty-four thousand, eight hundred twenty-one".