38478117 has 8 divisors (see below), whose sum is σ = 51398496. Its totient is φ = 25604912.

The previous prime is 38478109. The next prime is 38478127. The reversal of 38478117 is 71187483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38478117 - 2³ = 38478109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38478107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9843 + ... + 13184.

It is an arithmetic number, because the mean of its divisors is an integer number (6424812).

Almost surely, 2^38478117 is an apocalyptic number.

It is an amenable number.

38478117 is a deficient number, since it is larger than the sum of its proper divisors (12920379).

38478117 is a wasteful number, since it uses less digits than its factorization.

38478117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23587.

The product of its digits is 37632, while the sum is 39.

The square root of 38478117 is about 6203.0731899600. The cubic root of 38478117 is about 337.6016834902.

The spelling of 38478117 in words is "thirty-eight million, four hundred seventy-eight thousand, one hundred seventeen".