1938933307 has 2 divisors, whose sum is σ = 1938933308. Its totient is φ = 1938933306.

The previous prime is 1938933277. The next prime is 1938933329. The reversal of 1938933307 is 7033398391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1938933307 - 2⁷ = 1938933179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1938933407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969466653 + 969466654.

It is an arithmetic number, because the mean of its divisors is an integer number (969466654).

Almost surely, 2^1938933307 is an apocalyptic number.

1938933307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1938933307 is an equidigital number, since it uses as much as digits as its factorization.

1938933307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 1938933307 is about 44033.3204176110. The cubic root of 1938933307 is about 1246.9650761801.

The spelling of 1938933307 in words is "one billion, nine hundred thirty-eight million, nine hundred thirty-three thousand, three hundred seven".