3946573784 has 8 divisors (see below), whose sum is σ = 7399825860. Its totient is φ = 1973286888.

The previous prime is 3946573781. The next prime is 3946573789. The reversal of 3946573784 is 4873756493.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946573781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246660854 + ... + 246660869.

Almost surely, 2^3946573784 is an apocalyptic number.

It is an amenable number.

3946573784 is a deficient number, since it is larger than the sum of its proper divisors (3453252076).

3946573784 is a wasteful number, since it uses less digits than its factorization.

3946573784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493321729 (or 493321725 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 56.

The square root of 3946573784 is about 62821.7620255911. The cubic root of 3946573784 is about 1580.3019483808.

The spelling of 3946573784 in words is "three billion, nine hundred forty-six million, five hundred seventy-three thousand, seven hundred eighty-four".