3944023947 has 16 divisors (see below), whose sum is σ = 5885040000. Its totient is φ = 2610430632.

The previous prime is 3944023927. The next prime is 3944023961. The reversal of 3944023947 is 7493204493.

3944023947 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3944023947 - 2⁶ = 3944023883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3944023907) 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, 521697 + ... + 529202.

It is an arithmetic number, because the mean of its divisors is an integer number (367815000).

Almost surely, 2^3944023947 is an apocalyptic number.

3944023947 is a deficient number, since it is larger than the sum of its proper divisors (1941016053).

3944023947 is a wasteful number, since it uses less digits than its factorization.

3944023947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051047 (or 1051041 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The square root of 3944023947 is about 62801.4645291015. The cubic root of 3944023947 is about 1579.9615366111.

The spelling of 3944023947 in words is "three billion, nine hundred forty-four million, twenty-three thousand, nine hundred forty-seven".