38505983 has 4 divisors (see below), whose sum is σ = 38865960. Its totient is φ = 38146008.

The previous prime is 38505959. The next prime is 38505991. The reversal of 38505983 is 38950583.

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

It is a cyclic number.

It is not a de Polignac number, because 38505983 - 2¹⁰ = 38504959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38505983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38502983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179828 + ... + 180041.

It is an arithmetic number, because the mean of its divisors is an integer number (9716490).

Almost surely, 2^38505983 is an apocalyptic number.

38505983 is a deficient number, since it is larger than the sum of its proper divisors (359977).

38505983 is a wasteful number, since it uses less digits than its factorization.

38505983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359976.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 38505983 is about 6205.3189281454. The cubic root of 38505983 is about 337.6831613028.

The spelling of 38505983 in words is "thirty-eight million, five hundred five thousand, nine hundred eighty-three".