39928103 has 4 divisors (see below), whose sum is σ = 39959520. Its totient is φ = 39896688.

The previous prime is 39928079. The next prime is 39928111. The reversal of 39928103 is 30182993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30182993 = 563 ⋅53611.

It is a cyclic number.

It is not a de Polignac number, because 39928103 - 2⁶ = 39928039 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 (39928193) 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, 13718 + ... + 16371.

It is an arithmetic number, because the mean of its divisors is an integer number (9989880).

Almost surely, 2^39928103 is an apocalyptic number.

39928103 is a deficient number, since it is larger than the sum of its proper divisors (31417).

39928103 is a wasteful number, since it uses less digits than its factorization.

39928103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31416.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 39928103 is about 6318.8688069939. The cubic root of 39928103 is about 341.7901628786.

The spelling of 39928103 in words is "thirty-nine million, nine hundred twenty-eight thousand, one hundred three".