1098011 has 4 divisors (see below), whose sum is σ = 1100112. Its totient is φ = 1095912.

The previous prime is 1097983. The next prime is 1098017. The reversal of 1098011 is 1108901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1108901 = 31 ⋅35771.

It is a cyclic number.

It is not a de Polignac number, because 1098011 - 2⁶ = 1097947 is a prime.

It is a super-2 number, since 2×1098011² = 2411256312242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1098017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425 + ... + 1541.

It is an arithmetic number, because the mean of its divisors is an integer number (275028).

2^1098011 is an apocalyptic number.

1098011 is a deficient number, since it is larger than the sum of its proper divisors (2101).

1098011 is an equidigital number, since it uses as much as digits as its factorization.

1098011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 1098011 is about 1047.8602005993. The cubic root of 1098011 is about 103.1657556694.

The spelling of 1098011 in words is "one million, ninety-eight thousand, eleven".