8406986 has 16 divisors (see below), whose sum is σ = 14449536. Its totient is φ = 3593616.

The previous prime is 8406977. The next prime is 8406991. The reversal of 8406986 is 6896048.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9035 + ... + 9921.

It is an arithmetic number, because the mean of its divisors is an integer number (903096).

Almost surely, 2^8406986 is an apocalyptic number.

8406986 is a deficient number, since it is larger than the sum of its proper divisors (6042550).

8406986 is a wasteful number, since it uses less digits than its factorization.

8406986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 8406986 is about 2899.4802982604. The cubic root of 8406986 is about 203.3356092791.

The spelling of 8406986 in words is "eight million, four hundred six thousand, nine hundred eighty-six".