38918487 has 8 divisors (see below), whose sum is σ = 53293936. Its totient is φ = 25244352.

The previous prime is 38918459. The next prime is 38918497. The reversal of 38918487 is 78481983.

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

It is not a de Polignac number, because 38918487 - 2²³ = 30529879 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 (38918497) 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, 175198 + ... + 175419.

It is an arithmetic number, because the mean of its divisors is an integer number (6661742).

Almost surely, 2^38918487 is an apocalyptic number.

38918487 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

38918487 is a deficient number, since it is larger than the sum of its proper divisors (14375449).

38918487 is a wasteful number, since it uses less digits than its factorization.

38918487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350657.

The product of its digits is 387072, while the sum is 48.

The square root of 38918487 is about 6238.4683216315. The cubic root of 38918487 is about 338.8847164147.

The spelling of 38918487 in words is "thirty-eight million, nine hundred eighteen thousand, four hundred eighty-seven".