104566621 has 2 divisors, whose sum is σ = 104566622. Its totient is φ = 104566620.

The previous prime is 104566603. The next prime is 104566639. The reversal of 104566621 is 126665401.

It is a balanced prime because it is at equal distance from previous prime (104566603) and next prime (104566639).

It can be written as a sum of positive squares in only one way, i.e., 101727396 + 2839225 = 10086^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 104566621 - 2⁹ = 104566109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104566661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52283310 + 52283311.

It is an arithmetic number, because the mean of its divisors is an integer number (52283311).

Almost surely, 2^104566621 is an apocalyptic number.

It is an amenable number.

104566621 is a deficient number, since it is larger than the sum of its proper divisors (1).

104566621 is an equidigital number, since it uses as much as digits as its factorization.

104566621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 104566621 is about 10225.7821705726. The cubic root of 104566621 is about 471.1194396597.

The spelling of 104566621 in words is "one hundred four million, five hundred sixty-six thousand, six hundred twenty-one".