1098826 has 16 divisors (see below), whose sum is σ = 1751040. Its totient is φ = 516240.

The previous prime is 1098821. The next prime is 1098833. The reversal of 1098826 is 6288901.

1098826 = 154² + 155² + ... + 190².

It is a junction number, because it is equal to n+sod(n) for n = 1098791 and 1098800.

It is not an unprimeable number, because it can be changed into a prime (1098821) by changing a digit.

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, 2055 + ... + 2533.

It is an arithmetic number, because the mean of its divisors is an integer number (109440).

2^1098826 is an apocalyptic number.

1098826 is a deficient number, since it is larger than the sum of its proper divisors (652214).

1098826 is a wasteful number, since it uses less digits than its factorization.

1098826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1098826 is about 1048.2490162170. The cubic root of 1098826 is about 103.1912743259.

The spelling of 1098826 in words is "one million, ninety-eight thousand, eight hundred twenty-six".