4156686 has 24 divisors (see below), whose sum is σ = 9317880. Its totient is φ = 1337616.

The previous prime is 4156673. The next prime is 4156709. The reversal of 4156686 is 6866514.

It is a self number, because there is not a number n which added to its sum of digits gives 4156686.

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, 3460 + ... + 4503.

It is an arithmetic number, because the mean of its divisors is an integer number (388245).

Almost surely, 2^4156686 is an apocalyptic number.

4156686 is an abundant number, since it is smaller than the sum of its proper divisors (5161194).

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

4156686 is a wasteful number, since it uses less digits than its factorization.

4156686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8000 (or 7997 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 4156686 is about 2038.7952324841. The cubic root of 4156686 is about 160.7863116736.

The spelling of 4156686 in words is "four million, one hundred fifty-six thousand, six hundred eighty-six".