1104639 has 8 divisors (see below), whose sum is σ = 1523760. Its totient is φ = 710976.

The previous prime is 1104619. The next prime is 1104659. The reversal of 1104639 is 9364011.

It is an interprime number because it is at equal distance from previous prime (1104619) and next prime (1104659).

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

It is not a de Polignac number, because 1104639 - 2⁷ = 1104511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6262 + ... + 6435.

It is an arithmetic number, because the mean of its divisors is an integer number (190470).

2^1104639 is an apocalyptic number.

1104639 is a deficient number, since it is larger than the sum of its proper divisors (419121).

1104639 is a wasteful number, since it uses less digits than its factorization.

1104639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12729.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1104639 is about 1051.0180778655. The cubic root of 1104639 is about 103.3729215870.

The spelling of 1104639 in words is "one million, one hundred four thousand, six hundred thirty-nine".