1085556998 has 16 divisors (see below), whose sum is σ = 1725403680. Its totient is φ = 510470016.

The previous prime is 1085556919. The next prime is 1085557043. The reversal of 1085556998 is 8996555801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37415 + ... + 59757.

It is an arithmetic number, because the mean of its divisors is an integer number (107837730).

Almost surely, 2^1085556998 is an apocalyptic number.

1085556998 is a deficient number, since it is larger than the sum of its proper divisors (639846682).

1085556998 is a wasteful number, since it uses less digits than its factorization.

1085556998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23791.

The product of its (nonzero) digits is 3888000, while the sum is 56.

The square root of 1085556998 is about 32947.7920049280. The cubic root of 1085556998 is about 1027.7422497978.

The spelling of 1085556998 in words is "one billion, eighty-five million, five hundred fifty-six thousand, nine hundred ninety-eight".