38690039 has 2 divisors, whose sum is σ = 38690040. Its totient is φ = 38690038.

The previous prime is 38690027. The next prime is 38690081. The reversal of 38690039 is 93009683.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38690039 - 2¹² = 38685943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38689984 and 38690011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38690339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19345019 + 19345020.

It is an arithmetic number, because the mean of its divisors is an integer number (19345020).

Almost surely, 2^38690039 is an apocalyptic number.

38690039 is a deficient number, since it is larger than the sum of its proper divisors (1).

38690039 is an equidigital number, since it uses as much as digits as its factorization.

38690039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 38690039 is about 6220.1317510162. The cubic root of 38690039 is about 338.2203405566.

The spelling of 38690039 in words is "thirty-eight million, six hundred ninety thousand, thirty-nine".