38638079 has 2 divisors, whose sum is σ = 38638080. Its totient is φ = 38638078.

The previous prime is 38638073. The next prime is 38638087. The reversal of 38638079 is 97083683.

It is a weak prime.

It is an emirp because it is prime and its reverse (97083683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38638079 - 2²⁴ = 21860863 is a prime.

It is a super-2 number, since 2×38638079² = 2985802297620482, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38638073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19319039 + 19319040.

It is an arithmetic number, because the mean of its divisors is an integer number (19319040).

Almost surely, 2^38638079 is an apocalyptic number.

38638079 is a deficient number, since it is larger than the sum of its proper divisors (1).

38638079 is an equidigital number, since it uses as much as digits as its factorization.

38638079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 38638079 is about 6215.9535873428. The cubic root of 38638079 is about 338.0688648592.

The spelling of 38638079 in words is "thirty-eight million, six hundred thirty-eight thousand, seventy-nine".