38920307 has 2 divisors, whose sum is σ = 38920308. Its totient is φ = 38920306.

The previous prime is 38920253. The next prime is 38920313. The reversal of 38920307 is 70302983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38920307 - 2⁸ = 38920051 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38920397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19460153 + 19460154.

It is an arithmetic number, because the mean of its divisors is an integer number (19460154).

Almost surely, 2^38920307 is an apocalyptic number.

38920307 is a deficient number, since it is larger than the sum of its proper divisors (1).

38920307 is an equidigital number, since it uses as much as digits as its factorization.

38920307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 38920307 is about 6238.6141890647. The cubic root of 38920307 is about 338.8899989134.

The spelling of 38920307 in words is "thirty-eight million, nine hundred twenty thousand, three hundred seven".