3893909706 has 64 divisors (see below), whose sum is σ = 9041414400. Its totient is φ = 1239879168.

The previous prime is 3893909689. The next prime is 3893909713. The reversal of 3893909706 is 6079093983.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1211830 + ... + 1215038.

It is an arithmetic number, because the mean of its divisors is an integer number (141272100).

Almost surely, 2^3893909706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3893909706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4520707200).

3893909706 is an abundant number, since it is smaller than the sum of its proper divisors (5147504694).

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

3893909706 is a wasteful number, since it uses less digits than its factorization.

3893909706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220 (or 4214 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 3893909706 is about 62401.1995557778. The cubic root of 3893909706 is about 1573.2411313132.

The spelling of 3893909706 in words is "three billion, eight hundred ninety-three million, nine hundred nine thousand, seven hundred six".