3428833621 has 4 divisors (see below), whose sum is σ = 3429039744. Its totient is φ = 3428627500.

The previous prime is 3428833619. The next prime is 3428833627. The reversal of 3428833621 is 1263388243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1263388243 = 13 ⋅97183711.

It is a cyclic number.

It is not a de Polignac number, because 3428833621 - 2¹ = 3428833619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428833627) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 75685 + ... + 112186.

It is an arithmetic number, because the mean of its divisors is an integer number (857259936).

Almost surely, 2^3428833621 is an apocalyptic number.

It is an amenable number.

3428833621 is a deficient number, since it is larger than the sum of its proper divisors (206123).

3428833621 is a wasteful number, since it uses less digits than its factorization.

3428833621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206122.

The product of its digits is 165888, while the sum is 40.

The square root of 3428833621 is about 58556.2432281990. The cubic root of 3428833621 is about 1507.9333189223.

The spelling of 3428833621 in words is "three billion, four hundred twenty-eight million, eight hundred thirty-three thousand, six hundred twenty-one".