4992779 has 4 divisors (see below), whose sum is σ = 5446680. Its totient is φ = 4538880.

The previous prime is 4992769. The next prime is 4992787. The reversal of 4992779 is 9772994.

4992779 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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-4992779 is a prime.

It is a d-powerful number, because it can be written as 4⁴ + 9² + 9⁵ + 2¹⁵ + 7 + 7⁶ + 9⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4992709) 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 3 ways as a sum of consecutive naturals, for example, 226934 + ... + 226955.

It is an arithmetic number, because the mean of its divisors is an integer number (1361670).

Almost surely, 2^4992779 is an apocalyptic number.

4992779 is a deficient number, since it is larger than the sum of its proper divisors (453901).

4992779 is a wasteful number, since it uses less digits than its factorization.

4992779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453900.

The product of its digits is 285768, while the sum is 47.

The square root of 4992779 is about 2234.4527294172. The cubic root of 4992779 is about 170.9152367658.

The spelling of 4992779 in words is "four million, nine hundred ninety-two thousand, seven hundred seventy-nine".