3944481673 has 8 divisors (see below), whose sum is σ = 4303678176. Its totient is φ = 3585386400.

The previous prime is 3944481647. The next prime is 3944481677. The reversal of 3944481673 is 3761844493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3944481673 - 2⁵ = 3944481641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3944481677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72690 + ... + 114772.

It is an arithmetic number, because the mean of its divisors is an integer number (537959772).

Almost surely, 2^3944481673 is an apocalyptic number.

It is an amenable number.

3944481673 is a deficient number, since it is larger than the sum of its proper divisors (359196503).

3944481673 is a wasteful number, since it uses less digits than its factorization.

3944481673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50615.

The product of its digits is 1741824, while the sum is 49.

The square root of 3944481673 is about 62805.1086536756. The cubic root of 3944481673 is about 1580.0226553660.

The spelling of 3944481673 in words is "three billion, nine hundred forty-four million, four hundred eighty-one thousand, six hundred seventy-three".