4787791 has 8 divisors (see below), whose sum is σ = 5126400. Its totient is φ = 4457880.

The previous prime is 4787789. The next prime is 4787803. The reversal of 4787791 is 1977874.

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 4787791 - 2¹ = 4787789 is a prime.

It is a d-powerful number, because it can be written as 4 + 7 + 8 + 7⁴ + 7⁴ + 9⁷ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4787701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015 + ... + 3256.

It is an arithmetic number, because the mean of its divisors is an integer number (640800).

Almost surely, 2^4787791 is an apocalyptic number.

4787791 is a deficient number, since it is larger than the sum of its proper divisors (338609).

4787791 is a wasteful number, since it uses less digits than its factorization.

4787791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349.

The product of its digits is 98784, while the sum is 43.

The square root of 4787791 is about 2188.1021456961. The cubic root of 4787791 is about 168.5433912208.

The spelling of 4787791 in words is "four million, seven hundred eighty-seven thousand, seven hundred ninety-one".