38911983 has 8 divisors (see below), whose sum is σ = 56599296. Its totient is φ = 23583000.

The previous prime is 38911969. The next prime is 38912011.

It is a happy number.

38911983 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 38911983 - 2⁶ = 38911919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38911903) 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, 589543 + ... + 589608.

It is an arithmetic number, because the mean of its divisors is an integer number (7074912).

Almost surely, 2^38911983 is an apocalyptic number.

38911983 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

38911983 is a deficient number, since it is larger than the sum of its proper divisors (17687313).

38911983 is a wasteful number, since it uses less digits than its factorization.

38911983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179165.

The product of its digits is 46656, while the sum is 42.

The square root of 38911983 is about 6237.9470180501. The cubic root of 38911983 is about 338.8658373921.

The spelling of 38911983 in words is "thirty-eight million, nine hundred eleven thousand, nine hundred eighty-three".