1098532863 has 12 divisors (see below), whose sum is σ = 1602481608. Its totient is φ = 725103600.

The previous prime is 1098532819. The next prime is 1098532867. The reversal of 1098532863 is 3682358901.

It is a happy number.

1098532863 is a `hidden beast` number, since 109 + 8 + 532 + 8 + 6 + 3 = 666.

It is not a de Polignac number, because 1098532863 - 2²⁶ = 1031423999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098532867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 603345 + ... + 605162.

It is an arithmetic number, because the mean of its divisors is an integer number (133540134).

Almost surely, 2^1098532863 is an apocalyptic number.

1098532863 is a deficient number, since it is larger than the sum of its proper divisors (503948745).

1098532863 is a wasteful number, since it uses less digits than its factorization.

1098532863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208614 (or 1208611 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1098532863 is about 33144.1226011491. The cubic root of 1098532863 is about 1031.8209729787.

The spelling of 1098532863 in words is "one billion, ninety-eight million, five hundred thirty-two thousand, eight hundred sixty-three".