3420966973 has 4 divisors (see below), whose sum is σ = 3423751740. Its totient is φ = 3418182208.

The previous prime is 3420966961. The next prime is 3420967007. The reversal of 3420966973 is 3796690243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3796690243 = 3623 ⋅1047941.

It can be written as a sum of positive squares in 2 ways, for example, as 3363768004 + 57198969 = 57998^2 + 7563^2 .

It is a cyclic number.

It is not a de Polignac number, because 3420966973 - 2²¹ = 3418869821 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420967973) 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, 1390540 + ... + 1392997.

It is an arithmetic number, because the mean of its divisors is an integer number (855937935).

Almost surely, 2^3420966973 is an apocalyptic number.

It is an amenable number.

3420966973 is a deficient number, since it is larger than the sum of its proper divisors (2784767).

3420966973 is a wasteful number, since it uses less digits than its factorization.

3420966973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784766.

The product of its (nonzero) digits is 1469664, while the sum is 49.

The square root of 3420966973 is about 58489.0329292595. The cubic root of 3420966973 is about 1506.7792370653.

The spelling of 3420966973 in words is "three billion, four hundred twenty million, nine hundred sixty-six thousand, nine hundred seventy-three".