1098773 has 4 divisors (see below), whose sum is σ = 1183308. Its totient is φ = 1014240.

The previous prime is 1098737. The next prime is 1098787. The reversal of 1098773 is 3778901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3778901 = 7 ⋅539843.

It can be written as a sum of positive squares in 2 ways, for example, as 54289 + 1044484 = 233^2 + 1022^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098773 - 2⁶ = 1098709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098073) 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 3 ways as a sum of consecutive naturals, for example, 42248 + ... + 42273.

It is an arithmetic number, because the mean of its divisors is an integer number (295827).

2^1098773 is an apocalyptic number.

1098773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1098773 is a deficient number, since it is larger than the sum of its proper divisors (84535).

1098773 is an equidigital number, since it uses as much as digits as its factorization.

1098773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84534.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 1098773 is about 1048.2237356595. The cubic root of 1098773 is about 103.1896152141.

The spelling of 1098773 in words is "one million, ninety-eight thousand, seven hundred seventy-three".