104653621 has 4 divisors (see below), whose sum is σ = 105914592. Its totient is φ = 103392652.

The previous prime is 104653609. The next prime is 104653651. The reversal of 104653621 is 126356401.

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 104653621 - 2⁵ = 104653589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104653621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104653651) 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, 630361 + ... + 630526.

It is an arithmetic number, because the mean of its divisors is an integer number (26478648).

Almost surely, 2^104653621 is an apocalyptic number.

It is an amenable number.

104653621 is a deficient number, since it is larger than the sum of its proper divisors (1260971).

104653621 is an equidigital number, since it uses as much as digits as its factorization.

104653621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260970.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 104653621 is about 10230.0352394310. The cubic root of 104653621 is about 471.2500614231.

The spelling of 104653621 in words is "one hundred four million, six hundred fifty-three thousand, six hundred twenty-one".