38020709 has 2 divisors, whose sum is σ = 38020710. Its totient is φ = 38020708.

The previous prime is 38020693. The next prime is 38020733. The reversal of 38020709 is 90702083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21390625 + 16630084 = 4625^2 + 4078^2 .

It is a cyclic number.

It is not a de Polignac number, because 38020709 - 2⁴ = 38020693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38020739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19010354 + 19010355.

It is an arithmetic number, because the mean of its divisors is an integer number (19010355).

Almost surely, 2^38020709 is an apocalyptic number.

It is an amenable number.

38020709 is a deficient number, since it is larger than the sum of its proper divisors (1).

38020709 is an equidigital number, since it uses as much as digits as its factorization.

38020709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 38020709 is about 6166.0934958854. The cubic root of 38020709 is about 336.2586025263.

The spelling of 38020709 in words is "thirty-eight million, twenty thousand, seven hundred nine".