38815039 has 2 divisors, whose sum is σ = 38815040. Its totient is φ = 38815038.

The previous prime is 38815037. The next prime is 38815057. The reversal of 38815039 is 93051883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38815039 - 2¹ = 38815037 is a prime.

Together with 38815037, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 38814989 and 38815007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38815037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19407519 + 19407520.

It is an arithmetic number, because the mean of its divisors is an integer number (19407520).

Almost surely, 2^38815039 is an apocalyptic number.

38815039 is a deficient number, since it is larger than the sum of its proper divisors (1).

38815039 is an equidigital number, since it uses as much as digits as its factorization.

38815039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 38815039 is about 6230.1716669768. The cubic root of 38815039 is about 338.5841904004.

The spelling of 38815039 in words is "thirty-eight million, eight hundred fifteen thousand, thirty-nine".