104648021 has 4 divisors (see below), whose sum is σ = 104863392. Its totient is φ = 104432652.

The previous prime is 104648017. The next prime is 104648051. The reversal of 104648021 is 120846401.

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 104648021 - 2² = 104648017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104648051) 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, 106955 + ... + 107928.

It is an arithmetic number, because the mean of its divisors is an integer number (26215848).

Almost surely, 2^104648021 is an apocalyptic number.

It is an amenable number.

104648021 is a deficient number, since it is larger than the sum of its proper divisors (215371).

104648021 is an equidigital number, since it uses as much as digits as its factorization.

104648021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215370.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 104648021 is about 10229.7615319224. The cubic root of 104648021 is about 471.2416557658.

The spelling of 104648021 in words is "one hundred four million, six hundred forty-eight thousand, twenty-one".