1098512863 has 8 divisors (see below), whose sum is σ = 1260078080. Its totient is φ = 938106360.

The previous prime is 1098512843. The next prime is 1098512887. The reversal of 1098512863 is 3682158901.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1098512863 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 (1098512803) 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, 287643 + ... + 291436.

It is an arithmetic number, because the mean of its divisors is an integer number (157509760).

Almost surely, 2^1098512863 is an apocalyptic number.

1098512863 is a deficient number, since it is larger than the sum of its proper divisors (161565217).

1098512863 is an equidigital number, since it uses as much as digits as its factorization.

1098512863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579357.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 1098512863 is about 33143.8208871578. The cubic root of 1098512863 is about 1031.8147111284.

The spelling of 1098512863 in words is "one billion, ninety-eight million, five hundred twelve thousand, eight hundred sixty-three".