1098023 has 2 divisors, whose sum is σ = 1098024. Its totient is φ = 1098022.

The previous prime is 1098017. The next prime is 1098037. The reversal of 1098023 is 3208901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1098023 - 2¹⁰ = 1096999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1098023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549011 + 549012.

It is an arithmetic number, because the mean of its divisors is an integer number (549012).

2^1098023 is an apocalyptic number.

1098023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098023 is an equidigital number, since it uses as much as digits as its factorization.

1098023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1098023 is about 1047.8659265383. The cubic root of 1098023 is about 103.1661314958.

The spelling of 1098023 in words is "one million, ninety-eight thousand, twenty-three".