4788139 has 4 divisors (see below), whose sum is σ = 4812400. Its totient is φ = 4763880.

The previous prime is 4788131. The next prime is 4788197. The reversal of 4788139 is 9318874.

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

It is a cyclic number.

It is not a de Polignac number, because 4788139 - 2³ = 4788131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4788131) 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, 11832 + ... + 12229.

It is an arithmetic number, because the mean of its divisors is an integer number (1203100).

Almost surely, 2^4788139 is an apocalyptic number.

4788139 is a deficient number, since it is larger than the sum of its proper divisors (24261).

4788139 is a wasteful number, since it uses less digits than its factorization.

4788139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24260.

The product of its digits is 48384, while the sum is 40.

The square root of 4788139 is about 2188.1816652189. The cubic root of 4788139 is about 168.5474746404.

The spelling of 4788139 in words is "four million, seven hundred eighty-eight thousand, one hundred thirty-nine".