3894887906 has 48 divisors (see below), whose sum is σ = 7406598528. Its totient is φ = 1503216000.

The previous prime is 3894887897. The next prime is 3894887921. The reversal of 3894887906 is 6097884983.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76931 + ... + 117081.

It is an arithmetic number, because the mean of its divisors is an integer number (154304136).

Almost surely, 2^3894887906 is an apocalyptic number.

3894887906 is a deficient number, since it is larger than the sum of its proper divisors (3511710622).

3894887906 is a wasteful number, since it uses less digits than its factorization.

3894887906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40227 (or 40214 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 62.

The square root of 3894887906 is about 62409.0370539396. The cubic root of 3894887906 is about 1573.3728597251.

The spelling of 3894887906 in words is "three billion, eight hundred ninety-four million, eight hundred eighty-seven thousand, nine hundred six".