1104636021 has 4 divisors (see below), whose sum is σ = 1472848032. Its totient is φ = 736424012.

The previous prime is 1104635957. The next prime is 1104636023. The reversal of 1104636021 is 1206364011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1104636021 - 2⁶ = 1104635957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1104635982 and 1104636000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104636023) 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, 184106001 + ... + 184106006.

It is an arithmetic number, because the mean of its divisors is an integer number (368212008).

Almost surely, 2^1104636021 is an apocalyptic number.

It is an amenable number.

1104636021 is a deficient number, since it is larger than the sum of its proper divisors (368212011).

1104636021 is an equidigital number, since it uses as much as digits as its factorization.

1104636021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368212010.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1104636021 is about 33236.0650649261. The cubic root of 1104636021 is about 1033.7282866127.

The spelling of 1104636021 in words is "one billion, one hundred four million, six hundred thirty-six thousand, twenty-one".