39928147 has 8 divisors (see below), whose sum is σ = 45670752. Its totient is φ = 34195200.

The previous prime is 39928129. The next prime is 39928193. The reversal of 39928147 is 74182993.

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

It is a cyclic number.

It is not a de Polignac number, because 39928147 - 2¹¹ = 39926099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39922147) 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, 13197 + ... + 15937.

It is an arithmetic number, because the mean of its divisors is an integer number (5708844).

Almost surely, 2^39928147 is an apocalyptic number.

39928147 is a deficient number, since it is larger than the sum of its proper divisors (5742605).

39928147 is a wasteful number, since it uses less digits than its factorization.

39928147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4829.

The product of its digits is 108864, while the sum is 43.

The square root of 39928147 is about 6318.8722886287. The cubic root of 39928147 is about 341.7902884273.

The spelling of 39928147 in words is "thirty-nine million, nine hundred twenty-eight thousand, one hundred forty-seven".