1098986 has 16 divisors (see below), whose sum is σ = 1966464. Its totient is φ = 450384.

The previous prime is 1098973. The next prime is 1098989. The reversal of 1098986 is 6898901.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1098989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1385 + ... + 2028.

It is an arithmetic number, because the mean of its divisors is an integer number (122904).

2^1098986 is an apocalyptic number.

1098986 is a deficient number, since it is larger than the sum of its proper divisors (867478).

1098986 is a wasteful number, since it uses less digits than its factorization.

1098986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 1098986 is about 1048.3253311830. The cubic root of 1098986 is about 103.1962826416.

The spelling of 1098986 in words is "one million, ninety-eight thousand, nine hundred eighty-six".