38513693 has 2 divisors, whose sum is σ = 38513694. Its totient is φ = 38513692.

The previous prime is 38513689. The next prime is 38513731. The reversal of 38513693 is 39631583.

38513693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (38513731) can be obtained adding 38513693 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32569849 + 5943844 = 5707^2 + 2438^2 .

It is an emirp because it is prime and its reverse (39631583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38513693 - 2² = 38513689 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38513603) 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, 19256846 + 19256847.

It is an arithmetic number, because the mean of its divisors is an integer number (19256847).

Almost surely, 2^38513693 is an apocalyptic number.

It is an amenable number.

38513693 is a deficient number, since it is larger than the sum of its proper divisors (1).

38513693 is an equidigital number, since it uses as much as digits as its factorization.

38513693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 38.

The square root of 38513693 is about 6205.9401382869. The cubic root of 38513693 is about 337.7056977437.

The spelling of 38513693 in words is "thirty-eight million, five hundred thirteen thousand, six hundred ninety-three".