1104991893 has 12 divisors (see below), whose sum is σ = 1612555308. Its totient is φ = 729066240.

The previous prime is 1104991879. The next prime is 1104991903. The reversal of 1104991893 is 3981994011.

It can be written as a sum of positive squares in 2 ways, for example, as 182169009 + 922822884 = 13497^2 + 30378^2 .

It is not a de Polignac number, because 1104991893 - 2²⁰ = 1103943317 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104991793) 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, 631998 + ... + 633743.

It is an arithmetic number, because the mean of its divisors is an integer number (134379609).

Almost surely, 2^1104991893 is an apocalyptic number.

It is an amenable number.

1104991893 is a deficient number, since it is larger than the sum of its proper divisors (507563415).

1104991893 is a wasteful number, since it uses less digits than its factorization.

1104991893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265844 (or 1265841 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 1104991893 is about 33241.4183361661. The cubic root of 1104991893 is about 1033.8392840960.

The spelling of 1104991893 in words is "one billion, one hundred four million, nine hundred ninety-one thousand, eight hundred ninety-three".