38999983 has 16 divisors (see below), whose sum is σ = 44323200. Its totient is φ = 33990880.

The previous prime is 38999981. The next prime is 38999993.

38999983 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 38999983 - 2¹ = 38999981 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 (38999981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56760 + ... + 57442.

It is an arithmetic number, because the mean of its divisors is an integer number (2770200).

Almost surely, 2^38999983 is an apocalyptic number.

38999983 is a deficient number, since it is larger than the sum of its proper divisors (5323217).

38999983 is a wasteful number, since it uses less digits than its factorization.

38999983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902.

The product of its digits is 3779136, while the sum is 58.

The square root of 38999983 is about 6244.9966373089. The cubic root of 38999983 is about 339.1210950274.

The spelling of 38999983 in words is "thirty-eight million, nine hundred ninety-nine thousand, nine hundred eighty-three".