3904646439 has 32 divisors (see below), whose sum is σ = 5454457344. Its totient is φ = 2482513920.

The previous prime is 3904646423. The next prime is 3904646443. The reversal of 3904646439 is 9346464093.

It is not a de Polignac number, because 3904646439 - 2⁴ = 3904646423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3904646639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 988302 + ... + 992244.

It is an arithmetic number, because the mean of its divisors is an integer number (170451792).

Almost surely, 2^3904646439 is an apocalyptic number.

3904646439 is a deficient number, since it is larger than the sum of its proper divisors (1549810905).

3904646439 is a wasteful number, since it uses less digits than its factorization.

3904646439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167.

The product of its (nonzero) digits is 1679616, while the sum is 48.

The square root of 3904646439 is about 62487.1701951689. The cubic root of 3904646439 is about 1574.6857777785.

The spelling of 3904646439 in words is "three billion, nine hundred four million, six hundred forty-six thousand, four hundred thirty-nine".