3974344689 has 16 divisors (see below), whose sum is σ = 6058482560. Its totient is φ = 2270177280.

The previous prime is 3974344631. The next prime is 3974344733. The reversal of 3974344689 is 9864434793.

It is not a de Polignac number, because 3974344689 - 2¹⁹ = 3973820401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3974344189) 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, 21279 + ... + 91659.

It is an arithmetic number, because the mean of its divisors is an integer number (378655160).

Almost surely, 2^3974344689 is an apocalyptic number.

It is an amenable number.

3974344689 is a deficient number, since it is larger than the sum of its proper divisors (2084137871).

3974344689 is a wasteful number, since it uses less digits than its factorization.

3974344689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73080.

The product of its digits is 15676416, while the sum is 57.

The square root of 3974344689 is about 63042.4038961079. The cubic root of 3974344689 is about 1583.9999980072. Note that the first 5 decimals are identical.

The spelling of 3974344689 in words is "three billion, nine hundred seventy-four million, three hundred forty-four thousand, six hundred eighty-nine".