3929886 has 24 divisors (see below), whose sum is σ = 8597160. Its totient is φ = 1297296.

The previous prime is 3929879. The next prime is 3929917. The reversal of 3929886 is 6889293.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 961 + ... + 2963.

It is an arithmetic number, because the mean of its divisors is an integer number (358215).

Almost surely, 2^3929886 is an apocalyptic number.

3929886 is an abundant number, since it is smaller than the sum of its proper divisors (4667274).

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

3929886 is a wasteful number, since it uses less digits than its factorization.

3929886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120 (or 2117 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 3929886 is about 1982.3940072549. The cubic root of 3929886 is about 157.8071406408.

The spelling of 3929886 in words is "three million, nine hundred twenty-nine thousand, eight hundred eighty-six".