38013907 has 2 divisors, whose sum is σ = 38013908. Its totient is φ = 38013906.

The previous prime is 38013883. The next prime is 38013959. The reversal of 38013907 is 70931083.

It is a weak prime.

It is an emirp because it is prime and its reverse (70931083) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38013907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38013007) 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, 19006953 + 19006954.

It is an arithmetic number, because the mean of its divisors is an integer number (19006954).

Almost surely, 2^38013907 is an apocalyptic number.

38013907 is a deficient number, since it is larger than the sum of its proper divisors (1).

38013907 is an equidigital number, since it uses as much as digits as its factorization.

38013907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 38013907 is about 6165.5419064345. The cubic root of 38013907 is about 336.2385488285.

The spelling of 38013907 in words is "thirty-eight million, thirteen thousand, nine hundred seven".