4678139 has 4 divisors (see below), whose sum is σ = 4712424. Its totient is φ = 4643856.

The previous prime is 4678133. The next prime is 4678181. The reversal of 4678139 is 9318764.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4678139 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 (4678133) 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, 16937 + ... + 17210.

It is an arithmetic number, because the mean of its divisors is an integer number (1178106).

Almost surely, 2^4678139 is an apocalyptic number.

4678139 is a deficient number, since it is larger than the sum of its proper divisors (34285).

4678139 is a wasteful number, since it uses less digits than its factorization.

4678139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34284.

The product of its digits is 36288, while the sum is 38.

The square root of 4678139 is about 2162.9005987331. The cubic root of 4678139 is about 167.2467577348.

The spelling of 4678139 in words is "four million, six hundred seventy-eight thousand, one hundred thirty-nine".