4099686 has 16 divisors (see below), whose sum is σ = 8681904. Its totient is φ = 1286144.

The previous prime is 4099679. The next prime is 4099699. The reversal of 4099686 is 6869904.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 19995 + ... + 20198.

It is an arithmetic number, because the mean of its divisors is an integer number (542619).

Almost surely, 2^4099686 is an apocalyptic number.

4099686 is an abundant number, since it is smaller than the sum of its proper divisors (4582218).

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

4099686 is a wasteful number, since it uses less digits than its factorization.

4099686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40215.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 4099686 is about 2024.7681348737. The cubic root of 4099686 is about 160.0479804020.

The spelling of 4099686 in words is "four million, ninety-nine thousand, six hundred eighty-six".