8400986 has 16 divisors (see below), whose sum is σ = 13938048. Its totient is φ = 3765600.

The previous prime is 8400979. The next prime is 8401013. The reversal of 8400986 is 6890048.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010 + ... + 4221.

It is an arithmetic number, because the mean of its divisors is an integer number (871128).

Almost surely, 2^8400986 is an apocalyptic number.

8400986 is a deficient number, since it is larger than the sum of its proper divisors (5537062).

8400986 is a wasteful number, since it uses less digits than its factorization.

8400986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5317.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 8400986 is about 2898.4454454069. The cubic root of 8400986 is about 203.2872247566.

The spelling of 8400986 in words is "eight million, four hundred thousand, nine hundred eighty-six".