1104991 has 4 divisors (see below), whose sum is σ = 1131984. Its totient is φ = 1078000.

The previous prime is 1104959. The next prime is 1105009. The reversal of 1104991 is 1994011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1104991 - 2⁵ = 1104959 is a prime.

It is a super-2 number, since 2×1104991² = 2442010220162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104941) 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, 13435 + ... + 13516.

It is an arithmetic number, because the mean of its divisors is an integer number (282996).

2^1104991 is an apocalyptic number.

1104991 is a deficient number, since it is larger than the sum of its proper divisors (26993).

1104991 is an equidigital number, since it uses as much as digits as its factorization.

1104991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26992.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 1104991 is about 1051.1855212093. The cubic root of 1104991 is about 103.3839005597.

The spelling of 1104991 in words is "one million, one hundred four thousand, nine hundred ninety-one".