38648117 has 4 divisors (see below), whose sum is σ = 39590796. Its totient is φ = 37705440.

The previous prime is 38648107. The next prime is 38648149. The reversal of 38648117 is 71184683.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9821956 + 28826161 = 3134^2 + 5369^2 .

It is a cyclic number.

It is not a de Polignac number, because 38648117 - 2¹⁸ = 38385973 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 (38648107) 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, 471278 + ... + 471359.

It is an arithmetic number, because the mean of its divisors is an integer number (9897699).

Almost surely, 2^38648117 is an apocalyptic number.

It is an amenable number.

38648117 is a deficient number, since it is larger than the sum of its proper divisors (942679).

38648117 is an equidigital number, since it uses as much as digits as its factorization.

38648117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942678.

The product of its digits is 32256, while the sum is 38.

The square root of 38648117 is about 6216.7609733687. The cubic root of 38648117 is about 338.0981385836.

The spelling of 38648117 in words is "thirty-eight million, six hundred forty-eight thousand, one hundred seventeen".