38943903 has 4 divisors (see below), whose sum is σ = 51925208. Its totient is φ = 25962600.

The previous prime is 38943887. The next prime is 38943941. The reversal of 38943903 is 30934983.

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

It is not a de Polignac number, because 38943903 - 2⁴ = 38943887 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 (38947903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6490648 + ... + 6490653.

It is an arithmetic number, because the mean of its divisors is an integer number (12981302).

Almost surely, 2^38943903 is an apocalyptic number.

38943903 is a deficient number, since it is larger than the sum of its proper divisors (12981305).

38943903 is a wasteful number, since it uses less digits than its factorization.

38943903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12981304.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 38943903 is about 6240.5050276400. The cubic root of 38943903 is about 338.9584707352.

The spelling of 38943903 in words is "thirty-eight million, nine hundred forty-three thousand, nine hundred three".