38116009 has 4 divisors (see below), whose sum is σ = 38137680. Its totient is φ = 38094340.

The previous prime is 38115997. The next prime is 38116027. The reversal of 38116009 is 90061183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90061183 = 3301 ⋅27283.

It is a cyclic number.

It is not a de Polignac number, because 38116009 - 2¹¹ = 38113961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38116049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7939 + ... + 11800.

It is an arithmetic number, because the mean of its divisors is an integer number (9534420).

Almost surely, 2^38116009 is an apocalyptic number.

It is an amenable number.

38116009 is a deficient number, since it is larger than the sum of its proper divisors (21671).

38116009 is a wasteful number, since it uses less digits than its factorization.

38116009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21670.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 38116009 is about 6173.8164047856. The cubic root of 38116009 is about 336.5393154028.

The spelling of 38116009 in words is "thirty-eight million, one hundred sixteen thousand, nine".