1098863 has 8 divisors (see below), whose sum is σ = 1195632. Its totient is φ = 1005696.

The previous prime is 1098847. The next prime is 1098953. The reversal of 1098863 is 3688901.

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 1098863 - 2⁴ = 1098847 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 (1098803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245 + ... + 1502.

It is an arithmetic number, because the mean of its divisors is an integer number (149454).

2^1098863 is an apocalyptic number.

1098863 is a deficient number, since it is larger than the sum of its proper divisors (96769).

1098863 is a wasteful number, since it uses less digits than its factorization.

1098863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1098863 is about 1048.2666645468. The cubic root of 1098863 is about 103.1924325421.

The spelling of 1098863 in words is "one million, ninety-eight thousand, eight hundred sixty-three".