38770009 has 2 divisors, whose sum is σ = 38770010. Its totient is φ = 38770008.

The previous prime is 38770003. The next prime is 38770037. The reversal of 38770009 is 90007783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37454400 + 1315609 = 6120^2 + 1147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38770009 is a prime.

It is a super-3 number, since 3×38770009³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (38770003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19385004 + 19385005.

It is an arithmetic number, because the mean of its divisors is an integer number (19385005).

Almost surely, 2^38770009 is an apocalyptic number.

It is an amenable number.

38770009 is a deficient number, since it is larger than the sum of its proper divisors (1).

38770009 is an equidigital number, since it uses as much as digits as its factorization.

38770009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 38770009 is about 6226.5567531341. The cubic root of 38770009 is about 338.4532072714.

The spelling of 38770009 in words is "thirty-eight million, seven hundred seventy thousand, nine".