38758891 has 2 divisors, whose sum is σ = 38758892. Its totient is φ = 38758890.

The previous prime is 38758883. The next prime is 38758913. The reversal of 38758891 is 19885783.

It is a weak prime.

It is an emirp because it is prime and its reverse (19885783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38758891 - 2³ = 38758883 is a prime.

It is not a weakly prime, because it can be changed into another prime (38750891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19379445 + 19379446.

It is an arithmetic number, because the mean of its divisors is an integer number (19379446).

Almost surely, 2^38758891 is an apocalyptic number.

38758891 is a deficient number, since it is larger than the sum of its proper divisors (1).

38758891 is an equidigital number, since it uses as much as digits as its factorization.

38758891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 49.

The square root of 38758891 is about 6225.6639003403. The cubic root of 38758891 is about 338.4208516559.

The spelling of 38758891 in words is "thirty-eight million, seven hundred fifty-eight thousand, eight hundred ninety-one".