4578779 has 4 divisors (see below), whose sum is σ = 4641576. Its totient is φ = 4515984.

The previous prime is 4578767. The next prime is 4578811. The reversal of 4578779 is 9778754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9778754 = 2 ⋅4889377.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4578779 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4578709) 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, 31289 + ... + 31434.

It is an arithmetic number, because the mean of its divisors is an integer number (1160394).

Almost surely, 2^4578779 is an apocalyptic number.

4578779 is a deficient number, since it is larger than the sum of its proper divisors (62797).

4578779 is an equidigital number, since it uses as much as digits as its factorization.

4578779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62796.

The product of its digits is 493920, while the sum is 47.

The square root of 4578779 is about 2139.8081689722. The cubic root of 4578779 is about 166.0542112581.

The spelling of 4578779 in words is "four million, five hundred seventy-eight thousand, seven hundred seventy-nine".