1085887898 has 8 divisors (see below), whose sum is σ = 1632935892. Its totient is φ = 541575936.

The previous prime is 1085887897. The next prime is 1085887909. The reversal of 1085887898 is 8987885801.

It can be written as a sum of positive squares in 2 ways, for example, as 961186009 + 124701889 = 31003^2 + 11167^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1085887898.

It is not an unprimeable number, because it can be changed into a prime (1085887897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683015 + ... + 684602.

Almost surely, 2^1085887898 is an apocalyptic number.

1085887898 is a deficient number, since it is larger than the sum of its proper divisors (547047994).

1085887898 is a wasteful number, since it uses less digits than its factorization.

1085887898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368016.

The product of its (nonzero) digits is 10321920, while the sum is 62.

The square root of 1085887898 is about 32952.8132031243. The cubic root of 1085887898 is about 1027.8466648163.

The spelling of 1085887898 in words is "one billion, eighty-five million, eight hundred eighty-seven thousand, eight hundred ninety-eight".