3894397704 has 192 divisors, whose sum is σ = 11627179200. Its totient is φ = 1218841344.

The previous prime is 3894397687. The next prime is 3894397711. The reversal of 3894397704 is 4077934983.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2084979 + ... + 2086845.

It is an arithmetic number, because the mean of its divisors is an integer number (60558225).

Almost surely, 2^3894397704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3894397704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5813589600).

3894397704 is an abundant number, since it is smaller than the sum of its proper divisors (7732781496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3894397704 is a wasteful number, since it uses less digits than its factorization.

3894397704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The square root of 3894397704 is about 62405.1095984936. The cubic root of 3894397704 is about 1573.3068498766.

The spelling of 3894397704 in words is "three billion, eight hundred ninety-four million, three hundred ninety-seven thousand, seven hundred four".