1098211086 has 24 divisors (see below), whose sum is σ = 2719380144. Its totient is φ = 313774560.

The previous prime is 1098211069. The next prime is 1098211087. The reversal of 1098211086 is 6801128901.

It is a self number, because there is not a number n which added to its sum of digits gives 1098211086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098211087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4357855 + ... + 4358106.

It is an arithmetic number, because the mean of its divisors is an integer number (113307506).

Almost surely, 2^1098211086 is an apocalyptic number.

1098211086 is an abundant number, since it is smaller than the sum of its proper divisors (1621169058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1098211086 is a wasteful number, since it uses less digits than its factorization.

1098211086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8715976 (or 8715973 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 1098211086 is about 33139.2680365756. The cubic root of 1098211086 is about 1031.7202177832.

Adding to 1098211086 its reverse (6801128901), we get a palindrome (7899339987).

The spelling of 1098211086 in words is "one billion, ninety-eight million, two hundred eleven thousand, eighty-six".