103967621 has 2 divisors, whose sum is σ = 103967622. Its totient is φ = 103967620.

The previous prime is 103967569. The next prime is 103967623. The reversal of 103967621 is 126769301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65836996 + 38130625 = 8114^2 + 6175^2 .

It is a cyclic number.

It is not a de Polignac number, because 103967621 - 2⁶ = 103967557 is a prime.

Together with 103967623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103967623) 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, 51983810 + 51983811.

It is an arithmetic number, because the mean of its divisors is an integer number (51983811).

Almost surely, 2^103967621 is an apocalyptic number.

It is an amenable number.

103967621 is a deficient number, since it is larger than the sum of its proper divisors (1).

103967621 is an equidigital number, since it uses as much as digits as its factorization.

103967621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 103967621 is about 10196.4513925189. The cubic root of 103967621 is about 470.2181287183.

The spelling of 103967621 in words is "one hundred three million, nine hundred sixty-seven thousand, six hundred twenty-one".