1098005 has 8 divisors (see below), whose sum is σ = 1348512. Its totient is φ = 857808.

The previous prime is 1097983. The next prime is 1098017. The reversal of 1098005 is 5008901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1098005 - 2¹⁰ = 1096981 is a prime.

It is a super-2 number, since 2×1098005² = 2411229960050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

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, 2339 + ... + 2768.

It is an arithmetic number, because the mean of its divisors is an integer number (168564).

2^1098005 is an apocalyptic number.

It is an amenable number.

1098005 is a deficient number, since it is larger than the sum of its proper divisors (250507).

1098005 is an equidigital number, since it uses as much as digits as its factorization.

1098005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1098005 is about 1047.8573376181. The cubic root of 1098005 is about 103.1655677551.

The spelling of 1098005 in words is "one million, ninety-eight thousand, five".