38705117 has 18 divisors (see below), whose sum is σ = 43807806. Its totient is φ = 34169520.

The previous prime is 38705101. The next prime is 38705131. The reversal of 38705117 is 71150783.

It can be written as a sum of positive squares in only one way, i.e., 37810201 + 894916 = 6149^2 + 946^2 .

It is not a de Polignac number, because 38705117 - 2⁴ = 38705101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38705197) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 223643 + ... + 223815.

It is an arithmetic number, because the mean of its divisors is an integer number (2433767).

Almost surely, 2^38705117 is an apocalyptic number.

It is an amenable number.

38705117 is a deficient number, since it is larger than the sum of its proper divisors (5102689).

38705117 is a wasteful number, since it uses less digits than its factorization.

38705117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 38705117 is about 6221.3436651579. The cubic root of 38705117 is about 338.2642711056.

The spelling of 38705117 in words is "thirty-eight million, seven hundred five thousand, one hundred seventeen".