38221723 has 2 divisors, whose sum is σ = 38221724. Its totient is φ = 38221722.

The previous prime is 38221721. The next prime is 38221741. The reversal of 38221723 is 32712283.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38221723 - 2¹ = 38221721 is a prime.

Together with 38221721, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 38221691 and 38221700.

It is not a weakly prime, because it can be changed into another prime (38221721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19110861 + 19110862.

It is an arithmetic number, because the mean of its divisors is an integer number (19110862).

Almost surely, 2^38221723 is an apocalyptic number.

38221723 is a deficient number, since it is larger than the sum of its proper divisors (1).

38221723 is an equidigital number, since it uses as much as digits as its factorization.

38221723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 38221723 is about 6182.3719558111. The cubic root of 38221723 is about 336.8501565959.

The spelling of 38221723 in words is "thirty-eight million, two hundred twenty-one thousand, seven hundred twenty-three".