38123783 has 2 divisors, whose sum is σ = 38123784. Its totient is φ = 38123782.

The previous prime is 38123753. The next prime is 38123797. The reversal of 38123783 is 38732183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38123783 - 2¹⁸ = 37861639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38123753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19061891 + 19061892.

It is an arithmetic number, because the mean of its divisors is an integer number (19061892).

Almost surely, 2^38123783 is an apocalyptic number.

38123783 is a deficient number, since it is larger than the sum of its proper divisors (1).

38123783 is an equidigital number, since it uses as much as digits as its factorization.

38123783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 38123783 is about 6174.4459670484. The cubic root of 38123783 is about 336.5621936182.

Subtracting 38123783 from its reverse (38732183), we obtain a square (608400 = 780²).

The spelling of 38123783 in words is "thirty-eight million, one hundred twenty-three thousand, seven hundred eighty-three".