103849621 has 2 divisors, whose sum is σ = 103849622. Its totient is φ = 103849620.

The previous prime is 103849589. The next prime is 103849663. The reversal of 103849621 is 126948301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96314596 + 7535025 = 9814^2 + 2745^2 .

It is a cyclic number.

It is not a de Polignac number, because 103849621 - 2⁵ = 103849589 is a prime.

It is equal to p_5970238 and since 103849621 and 5970238 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103859621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51924810 + 51924811.

It is an arithmetic number, because the mean of its divisors is an integer number (51924811).

Almost surely, 2^103849621 is an apocalyptic number.

It is an amenable number.

103849621 is a deficient number, since it is larger than the sum of its proper divisors (1).

103849621 is an equidigital number, since it uses as much as digits as its factorization.

103849621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 103849621 is about 10190.6634229573. The cubic root of 103849621 is about 470.0401670817.

The spelling of 103849621 in words is "one hundred three million, eight hundred forty-nine thousand, six hundred twenty-one".