38383693 has 2 divisors, whose sum is σ = 38383694. Its totient is φ = 38383692.

The previous prime is 38383691. The next prime is 38383759. The reversal of 38383693 is 39638383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37970244 + 413449 = 6162^2 + 643^2 .

It is a cyclic number.

It is not a de Polignac number, because 38383693 - 2¹ = 38383691 is a prime.

Together with 38383691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38383691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19191846 + 19191847.

It is an arithmetic number, because the mean of its divisors is an integer number (19191847).

Almost surely, 2^38383693 is an apocalyptic number.

It is an amenable number.

38383693 is a deficient number, since it is larger than the sum of its proper divisors (1).

38383693 is an equidigital number, since it uses as much as digits as its factorization.

38383693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 43.

The square root of 38383693 is about 6195.4574488088. The cubic root of 38383693 is about 337.3253029129.

The spelling of 38383693 in words is "thirty-eight million, three hundred eighty-three thousand, six hundred ninety-three".