38506539 has 8 divisors (see below), whose sum is σ = 51813520. Its totient is φ = 25435296.

The previous prime is 38506511. The next prime is 38506541. The reversal of 38506539 is 93560583.

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

It is not a de Polignac number, because 38506539 - 2⁸ = 38506283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38506497 and 38506506.

It is not an unprimeable number, because it can be changed into a prime (38506549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58552 + ... + 59205.

It is an arithmetic number, because the mean of its divisors is an integer number (6476690).

Almost surely, 2^38506539 is an apocalyptic number.

38506539 is a deficient number, since it is larger than the sum of its proper divisors (13306981).

38506539 is a wasteful number, since it uses less digits than its factorization.

38506539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117869.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 38506539 is about 6205.3637282596. The cubic root of 38506539 is about 337.6847865994.

The spelling of 38506539 in words is "thirty-eight million, five hundred six thousand, five hundred thirty-nine".